論文 - 前田 幸重
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First Extraction of the Matter Radius of 132Sn via Proton Elastic Scattering at 200 MeV/Nucleon 査読あり 国際共著
Hijikata Y., Zenihiro J., Terashima S., Matsuda Y., Sakaguchi H., Arthuis P., Miyagi T., Ota S., Baba H., Chebotaryov S., Dozono M., Furuno T., Harada T., Iwamoto C., Kawabata T., Kobayashi M., Krasznahorkay A.J., Leblond S., Lokotko T., Maeda Y., Masuoka S., Matsushita M., Michimasa S., Milman E., Murakami T., Nasu H., Okamoto J., Sakaguchi S., Takaki M., Taniue K., Tokieda H., Tsumura M., Wieland O., Yamaguchi Y., Yang Z.H., Yokoyama R., Uesaka T.
Progress of Theoretical and Experimental Physics 2026 ( 1 ) 2026年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
The angular distribution of the differential cross sections for proton elastic scattering from <sup>132</sup>Sn at 196–210MeV/nucleon was successfully measured over a momentum transfer range of 0.80–2.1fm<sup>-1</sup>. Using a relativistic impulse approximation, the root-mean-square matter radius of <sup>132</sup>Sn was extracted as 4.758<sup>+0.023</sup><inf>-0.024</inf>fm, which was compared with the state-of-the-art ab initio calculations. Combined with the charge radius measured at ISOLDE, there are no theoretical calculations consistent with both matter and charge radii within the experimental errors.
DOI： 10.1093/ptep/ptaf182
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Analyzing powers for proton-3He elastic scattering at intermediate energies 査読あり 国際共著
Watanabe A., Sekiguchi K., Deltuva A., Hatanaka K., Ino T., Inoue M., Ishikawa S., Itoh M., Kameya K., Kanda H., Kitayama S., Maeda Y., Maruta Y., Miki K., Nakai S., Ong H.J., Sakai D., Sakai H., Saito Y., Shibuya S., Umetsu H., Utsuki Y., Wakasa T.
Physical Review C 112 ( 5 ) 1 - 12 2025年11月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
We present the measured data of the proton analyzing power A<inf>y</inf> in polarized proton elastic scattering of an unpolarized <sup>3</sup>He target and the <sup>3</sup>He analyzing power A<inf>0y</inf> in unpolarized proton scattering of a polarized <sup>3</sup>He target at three intermediate energies: 50, approximately 65, and 100 MeV. The experimental results are compared with rigorous four-nucleon scattering calculations based on the realistic charge dependent (CD) Bonn nucleon-nucleon (NN) potential. Large discrepancies are observed for both A<inf>y</inf> and A<inf>0y</inf> at the angles where the observables exhibit a minimum and a maximum at almost all three measured energies. The examination for discrepancies has been extended to the lower incident energy of 8.5 MeV, revealing that differences exist from 8.5 to 100 MeV for A<inf>y</inf>. The Δ-isobar effects derived using the NN+NΔ coupled-channel approach do not account for the A<inf>y</inf> and A<inf>0y</inf> data at the three investigated energies. We therefore estimated the effects of the irreducible three-body forces associated with the CD Bonn+Δ-isobar calculations. We also analyzed the p-<sup>3</sup>He elastic scattering amplitudes. The results obtained suggest that A<inf>y</inf> and A<inf>0y</inf> for p-<sup>3</sup>He elastic scattering at intermediate energies are insensitive to the 2π-exchange-type three-nucleon forces (3NFs), but enhance nuclear interactions, including the 3NFs masked in nucleon-deuteron elastic scattering.
DOI： 10.1103/hrrd-cfk5
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A Sakaue, K Yako, S Ota, H Baba, T Chillery, P Doornenbal, M Dozono, N Ebina, N Fukuda, N Fukunishi, T Furuno, S Hanai, T Harada, S Hayakawa, Y Hijikata, K Horikawa, S W Huang, N Imai, K Itahashi, N Kobayashi, Y Kondo, J Li, Y Maeda, T Matsui, S Y Matsumoto, R Matsumura, S Michimasa, N Nakatsuka, T Nishi, K Sakanashi, M Sasano, R Sekiya, N Shimizu, Y Shimizu, S Shimoura, T Sumikama, D Suzuki, H Suzuki, M Takaki, S Takeshige, H Takeda, J Tanaka, Y K Tanaka, Y Togano, R Tsuji, Z H Yang, K Yoshida, M Yoshimoto, J Zenihiro, T Uesaka
Progress of Theoretical and Experimental Physics 2024 ( 12 ) 2024年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Oxford University Press (OUP)
<jats:title>Abstract</jats:title>
<jats:p>A new experimental method to search for the double Gamow–Teller giant resonance using the double charge exchange ($^{12}$C, $^{12}$Be(0$^{+}_{2}$)) reaction is proposed and applied, for the first time, to a ${}^{48}$Ca target at 250 MeV/nucleon using a $^{12}$C primary beam at the RIKEN RI Beam Factory. The events with double isospin- and spin-flip in ${}^{48}$Ca were selected by measuring decay $\gamma$-rays from ${}^{12}$Be(0$^{+}_{2}$). A forward-peaking component in the measured double-differential cross sections was observed with an integrated $0^\circ$ cross section of $1.33 \pm 0.12$ μb/sr in the excitation energy region below 34 MeV in ${}^{48}$Ti. Reaction analyses based on distorted-wave Born approximation calculations and the multipole decomposition based thereon indicate that $\sim$40% of the forward-peaking component originates from the double Gamow–Teller transitions. The transition strength of the double Gamow–Teller transition is evaluated from the extracted forward-peaking cross section.</jats:p>DOI： 10.1093/ptep/ptae174
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Evolution of the two-neutron configuration from <sup>11</sup>Li to <sup>13</sup>Li 査読あり 国際共著
André P., Corsi A., Revel A., Kubota Y., Casal J., Fossez K., Gómez-Camacho J., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Rousse J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Uesaka T., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 857 2024年10月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
In this work we investigate the two-neutron decay of 13Li and of the excited states of 11Li populated via one-proton removal from 14Be and 12Be, respectively. A phenomenological model is used to describe the decay of 11Li and 13Li. While the first one displays important sequential components, the second one appears dominated by the direct two-neutron decay. A microscopic three-body model is used to extract information on the spatial configuration of the emitted neutrons before the decay and shows that the average distance between the neutrons increases going from 11Li to 13Li.
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Miki K., Kameya K., Sakai D., Urayama R., Imai N., Ishikawa S., Michimasa S., Ota S., Sasano M., Takeda H., Uesaka T., Haba H., Hara M., Hatano Y., Hayamizu T., Kobayashi N., Tamii A., Adachi S., Chillery T., Dozono M., Fujikawa Y., Fujita H., Fukuda N., Furuno T., Gao J., Goto S., Hanai S., Hayakawa S., Hijikata Y., Himi K., Hirai Y., Hwang J.W., Ichimura M., Inomoto D., Inoue M., Kasahara H., Kawabata T., Kishimoto K., Kitayama S., Kusaka K., Li J., Maeda Y., Maruta Y., Matsui T., Matsuzaki T., Nakai S., Nishibata H., Otake M., Saito Y., Sakai H., Sakaue A., Sato H., Sekiguchi K., Shimizu Y., Shimoura S., Stuhl L., Sumikama T., Suzuki H., Tsuji R., Tsuji S., Umetsu H., Utsuki Y., Wakasa T., Watanabe A., Yako K., Yanagisawa Y., Yokota N., Yonemura C., Yoshida K., Yoshimoto M.
Physical Review Letters 133 ( 1 ) 012501 2024年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
To search for low-energy resonant structures in isospin T=3/2 three-body systems, we have performed the experiments H3(t,He3)3n and He3(He3,t)3p at intermediate energies. For the 3n experiment, we have newly developed a thick Ti-H3 target that has the largest tritium thickness among targets of this type ever made. The 3n experiment for the first time covered the momentum-transfer region as low as 15 MeV/c, which provides ideal conditions for producing fragile systems. However, in the excitation-energy spectra we obtained, we did not observe any distinct peak structures. This is in sharp contrast to tetraneutron spectra. The distributions of the 3n and 3p spectra are found to be similar, except for the displacement in energy due to Coulomb repulsion. Comparisons with theoretical calculations suggest that three-body correlations exist in the 3n and 3p systems, although not enough to produce a resonant peak.
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Measurement of Spin Correlation Coefficient Cy,y for Proton-3He Elastic Scattering 査読あり 国際共著
Watanabe A., Nakai S., Sekiguchi K., Goto S., Hatanaka K., Hirai Y., Ino T., Inomoto D., Inoue M., Ishikawa S., Itoh M., Kanda H., Kasahara H., Maeda Y., Miki K., Nonaka K., Ong H.J., Oshiro H., Sakai D., Sakai H., Shibuya S., Tran D.T., Umetsu H., Utsuki Y., Wakasa T.
Few-Body Systems 65 ( 2 ) 2024年6月
掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
We present the measured spin correlation coefficient Cy,y for p-3He elastic scattering at 100 MeV at the angles θc.m.=46.9∘–149.2∘ in the center of mass system. The experiment was performed using a 100 MeV polarized proton beam in conjunction with the polarized 3He target. Proton beams were injected to the target, and scattered protons were detected by using E-ΔE detectors which consisted of plastic and NaI(Tl) scintillators. The data are compared with rigorous numerical calculations based on realistic NN potentials as well as with the Δ-isobar excitation. The obtained results indicate that the Cy,y expands the knowledge of the nuclear interactions with Δ-isobar or those including 3NFs that are masked in nucleon-deuteron elastic scattering.
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Mass, Spectroscopy, and Two-Neutron Decay of Be 16 査読あり 国際共著
Monteagudo B., Marque S F.M., Gibelin J., Orr N.A., Corsi A., Kubota Y., Casal J., Go Mez-Camacho J., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Rousse J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Uesaka T., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J.
Physical Review Letters 132 ( 8 ) 082501 2024年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
The structure and decay of the most neutron-rich beryllium isotope, Be16, has been investigated following proton knockout from a high-energy B17 beam. Two relatively narrow resonances were observed for the first time, with energies of 0.84(3) and 2.15(5) MeV above the two-neutron decay threshold and widths of 0.32(8) and 0.95(15) MeV, respectively. These were assigned to be the ground (Jπ=0+) and first excited (2+) state, with Ex=1.31(6) MeV. The mass excess of Be16 was thus deduced to be 56.93(13) MeV, some 0.5 MeV more bound than the only previous measurement. Both states were observed to decay by direct two-neutron emission. Calculations incorporating the evolution of the wave function during the decay as a genuine three-body process reproduced the principal characteristics of the neutron-neutron energy spectra for both levels, indicating that the ground state exhibits a strong spatially compact dineutron component, while the 2+ level presents a far more diffuse neutron-neutron distribution.
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Noro T., Sakaguchi S., Wakasa T., Dozono M., Fujioka H., Fujita K., Hatanaka K., Ishida T., Iwamoto C., Kawase S., Kubota Y., Maeda Y., Matsubara H., Miki K., Ota S., Panin V., Sakaguchi H., Sakaue A., Sakemi Y., Sasano M., Sekiguchi K., Shimizu Y., Takeda H., Tameshige Y., Tamii A., Terashima S., Uesaka T., Yang Z.H., Yasuda Y., Yoshida H.P., Zenihiro J.
Progress of Theoretical and Experimental Physics 2023 ( 9 ) 2023年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
We have measured the differential cross section and analyzing power for (p, 2p) reactions that lead to discrete states of residual nuclei at an incident energy of 197 MeV for five kinds of target nuclei, 12C, 16O, 40,48Ca, and 90Zr. The data are compared with distorted-wave impulse approximation calculations using two kinds of global optical potentials. The spectroscopic factors obtained from these calculations agree with those determined in (e, e′p) studies within 20%, except for one orbital of the 90Zr nucleus where the distortion effect is much greater than that for the other orbitals of 90Zr and for other target nuclei. We also observed a clear and visibly distinct j-dependence in the analyzing power.
DOI： 10.1093/ptep/ptad116
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Saito F., Matsuda Y., Umemoto S., Yamasaki N., Itoh M., Zenihiro J., Dozono M., Hijikata Y., Terashima S., Harada T., Sakaguchi H., Ota S., Kohda A., Maeda Y., Kawabata T.
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 540 262 - 264 2023年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
We developed an N2 gas scintillation counter as a time-of-flight counter for particle identification of radioactive isotope beams. Radiation damage, which often becomes a problem for high-intensity heavy ion beams, can be prevented by a continuous flow of N2 gas. The scintillator, with a volume of 60 mm × 60 mm × 100 mm, was filled with N2 gas at a pressure of approximately 100 kPa. Photons were detected using photomultiplier tubes attached to both sides of the vessel. The main emission wavelength of photons produced in the detector was 300–400 nm. Performance tests confirmed that the detector had sufficient detection efficiency, intrinsic time resolution, and short decay time. Additionally, the detector was demonstrated to be effective for particle identification.
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Searching for universality of dineutron correlation at the surface of Borromean nuclei 査読あり 国際共著
Corsi A., Kubota Y., Casal J., Gómez-Ramos M., Moro A.M., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Rousse J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Uesaka T., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 840 2023年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
The dineutron correlation is systematically studied in three different Borromean nuclei near the neutron dripline, 11Li, 14Be and 17B, via the (p,pn) knockout reaction measured at the RIBF facility in RIKEN. For the three nuclei, the correlation angle between the valence neutrons is found to be largest in the same range of intrinsic momenta, which can be associated to the nuclear surface. This result reinforces the prediction that the formation of the dineutron is universal in environments with low neutron density, such as the surface of neutron-rich Borromean nuclei.
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Spin correlation coefficient for proton- He 3 elastic scattering at 100 MeV 査読あり 国際共著
Watanabe A., Nakai S., Sekiguchi K., Deltuva A., Goto S., Hatanaka K., Hirai Y., Ino T., Inomoto D., Inoue M., Ishikawa S., Itoh M., Kanda H., Kasahara H., Maeda Y., Miki K., Nonaka K., Ong H.J., Oshiro H., Sakai D., Sakai H., Shibuya S., Tran D.T., Umetsu H., Utsuki Y., Wakasa T.
Physical Review C 106 ( 5 ) 2022年11月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
We present the measured spin correlation coefficient Cy,y for p-He3 elastic scattering at 100 MeV at the angles θc.m.=46.9∘-149.2∘ in the center-of-mass system. The Cy,y data and the existing cross section data are compared with rigorous four-nucleon scattering calculations based on realistic nucleon-nucleon potentials. Large differences are seen in the regime around the cross section minimum for both observables. The Δ-isobar effects estimated by the NN+NΔ coupled-channels approach are small for the cross section. Meanwhile, in Cy,y, the Δ-isobar effects improve the agreement with the data. The analysis of the p-He3 elastic scattering amplitudes implies the necessity of three-nucleon forces (3NFs) that enhance the vector components in the amplitudes. The obtained results indicate that the spin correlation coefficient Cy,y expands the knowledge of the nuclear interactions with the Δ isobar or those including 3NFs that are masked in nucleon-deuteron elastic scattering.
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Analyzing Power Measurement for p- <sup>3</sup> He Elastic Scattering at Intermediate Energies 査読あり 国際共著
Watanabe A., Nakai S., Wada Y., Sekiguchi K., Akieda T., Etoh D., Inoue M., Inoue Y., Kawahara K., Kon H., Miki K., Mukai T., Sakai D., Shibuya S., Shiokawa Y., Taguchi T., Umetsu H., Utsuki Y., Watanabe M., Goto S., Hatanaka K., Hirai Y., Ikeda Y., Ino T., Inomoto D., Ishikawa S., Itoh M., Kanda H., Kasahara H., Maeda Y., Mitsumoto S., Nonaka K., Ong H.J., Oshiro H., Otake Y., Sakai H., Taketani A., Tran D.T., Uesaka T., Wakasa T., Wakabayashi Y., Wakui T.
Few-Body Systems 62 ( 4 ) 2021年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Few-Body Systems
We present a precise measurement of 3He analyzing powers for p-3He elastic scattering with the polarized 3He target at 50, 65, 70, and 100 MeV. The data at 65 and 70 MeV are compared with the theoretical predictions based on the modern nucleon-nucleon potentials. Large discrepancies between the data and the predictions are clearly seen at the angles where the 3He analyzing power takes the minimum and maximum values, which are not explained by Δ-isobar effects.
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Experimental Study of <sup>4</sup>n by Directly Detecting the Decay Neutrons 査読あり 国際共著
Huang S.W., Yang Z.H., Marqués F.M., Achouri N.L., Ahn D.S., Aumann T., Baba H., Beaumel D., Böhmer M., Boretzky K., Caamaño M., Chen S., Chiga N., Cortés M.L., Cortina D., Doornenbal P., Douma C.A., Dufter F., Feng J., Fernández-Domínguez B., Elekes Z., Forsberg U., Fujino T., Fukuda N., Gašparić I., Ge Z., Gernhäuser R., Gheller J.M., Gibelin J., Gillibert A., Halász Z., Harada T., Harakeh M.N., Hirayama A., Inabe N., Isobe T., Kahlbow J., Kalantar-Nayestanaki N., Kim D., Kim S., Kiyotake S., Kobayashi T., Kondo Y., Koseoglou P., Kubota Y., Kuti I., Lehr C., Lenain C., Li P.J., Liu Y., Maeda Y., Masuoka S., Matsumoto M., Matta A., Mayer J., Miki H., Miwa M., Monteagudo B., Murray I., Nakamura T., Obertelli A., Orr N.A., Otsu H., Panin V., Park S., Parlog M., Paschalis S., Potlog M., Reichert S., Revel A., Rossi D., Saito A., Sasano M., Sato H., Scheit H., Schindler F., Shimada T., Shimizu Y., Shimoura S., Simon H., Stefan I., Storck S., Stuhl L., Suzuki H., Symochko D., Takeda H., Takeuchi S., Tanaka J., Togano Y., Tomai T., Törnqvist H.T., Tronchin E., Tscheuschner J., Uesaka T., Wagner V., Wimmer K., Yamada H., Yang B., Yang L., Yasuda Y.
Few-Body Systems 62 ( 4 ) 2021年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Few-Body Systems
The tetraneutron has attracted the attention of nuclear physicists during the past decades, but there is still no unambiguous confirmation of its existence or non-existence. A new experiment based on 8He(p, 2p)7H{t+4n} reaction, with direct detection of the four neutrons, has been carried out at RIBF, which can hopefully help to draw a definite conclusion on the tetraneutron system.
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陽子半径 査読あり
須田利美、本多佑記、前田幸重、塚田暁
高エネルギーニュース 40 107 - 116 2021年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Search for α condensed states in 13C using α inelastic scattering 査読あり
Inaba K., Sasamoto Y., Kawabata T., Fujiwara M., Funaki Y., Hatanaka K., Itoh K., Itoh M., Kawase K., Matsubara H., Maeda Y., Suda K., Sakaguchi S., Shimizu Y., Tamii A., Tameshige Y., Uchida M., Uesaka T., Yamada T., Yoshida H.P.
Progress of Theoretical and Experimental Physics 2021 ( 9 ) 2021年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
We searched for the α condensed state in 13C by measuring the α inelastic scattering at Eα = 388MeV at forward angles including 0?. We performed a distorted-wave Born approximation calculation with the single-folding potential and multipole decomposition analysis to determine the isoscalar transition strengths in 13C.We found a bump structure around Ex = 12.5MeV due to the isoscalar monopole (IS0) transition.A peak-fit analysis suggested that this bump consisted of several 1/2- states. We propose that this bump is due to the mirror state of the 13.5MeV state in 13N, which dominantly decays to the α condensed state in 12C. It was speculated that the 1/2- states around Ex = 12.5MeV were candidates for the α condensed state, but the 3α +n orthogonality condition model suggests that the α condensed state is unlikely to emerge as the negative parity states.We also found two 1/2+ or 3/2+ states at Ex = 14.5 and 16.1MeV excited with the isoscalar dipole (IS1) strengths.We suggest that the 16.1MeV state is a possible candidate for the α condensed state predicted by the cluster model calculations on the basis of the good correspondence between the experimental and calculated level structures. However, the theoretical IS1 transition strength for this state is significantly smaller than the measured value. Further experimental information is strongly desired to establish the α condensed state in 13C.
DOI： 10.1093/ptep/ptab102
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Candidates for the 5α condensed state in <sup>20</sup>Ne 査読あり
Adachi S., Fujikawa Y., Kawabata T., Akimune H., Doi T., Furuno T., Harada T., Inaba K., Ishida S., Itoh M., Iwamoto C., Kobayashi N., Maeda Y., Matsuda Y., Murata M., Okamoto S., Sakaue A., Sekiya R., Tamii A., Tsumura M.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 819 2021年8月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
We conducted the coincidence measurement of α particles inelastically scattered from 20Ne at 0° and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at Ex=23.6, 21.8, and 21.2 MeV in 20Ne are strongly coupled to a candidate for the 4α condensed state in 16O. This result presents the first strong evidence that these states are the candidates for the 5α condensed state.
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Candidates for the 5α condensed state in ²⁰Ne 査読あり
足立 智, 藤川 祐輝, 川畑 貴裕, 秋宗 秀俊, 土井 隆暢, 古野 達也, 原田 健志, 稲葉 健斗, 石田 駿野, 伊藤 正俊, 岩本 ちひろ, 小林 信之, 前田 幸重, 松田 洋平, 村田 求基, 岡本 慎太郎, 阪上 朱音, 関屋 涼平, 民井 淳, 津村 美保
Physics Letters B 819 2021年8月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Elsevier B.V.
We conducted the coincidence measurement of α particles inelastically scattered from ²⁰Ne at 0° and decay charged particles in order to search for the alpha-particle condensed state. We compared the measured excitation-energy spectrum and decay branching ratio with the statistical-decay-model calculations, and found that the newly observed states at , Ex = 23.6, 21.8, and 21.2 MeV in ²⁰Ne are strongly coupled to a candidate for the 4α condensed state in ¹⁶O. This result presents the first strong evidence that these states are the candidates for the 5α condensed state.
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Proton Radius 査読あり
須田利美、本多佑記、瀧大祐、郷家大雅、Clement LEGRIS, 石崎一志、三浦禎雄、 武藤俊哉、玉江忠明、前田幸重、Zhao HANG、塚田暁
原子核研究 66 2 - 11 2021年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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M. Tsumura, T. Kawabata, Y. Takahashi, S. Adachi, H. Akimune, S. Ashikaga, T. Baba, Y. Fujikawa, H. Fujimura, H. Fujioka, T. Furuno, T. Hashimoto, T. Harada, M. Ichikawa, K. Inaba, Y. Ishii, N. Itagaki, M. Itoh, C. Iwamoto, N. Kobayashi, A. Koshikawa, S. Kubono, Y. Maeda, Y. Matsuda, S. Matsumoto, K. Miki, T. Morimoto, M. Murata, T. Nanamura, I. Ou, S. Sakaguchi, A. Sakaue, M. Sferrazza, K.N. Suzuki, T. Takeda, A. Tamii, K. Watanabe, Y.N. Watanabe, H.P. Yoshida, J. Zenihiro
Physics Letters B 817 136283 2021年6月
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Proton- He 3 elastic scattering at intermediate energies 査読あり
Watanabe A., Nakai S., Wada Y., Sekiguchi K., Deltuva A., Akieda T., Etoh D., Inoue M., Inoue Y., Kawahara K., Kon H., Miki K., Mukai T., Sakai D., Shibuya S., Shiokawa Y., Taguchi T., Umetsu H., Utsuki Y., Watanabe M., Goto S., Hatanaka K., Hirai Y., Ino T., Inomoto D., Inoue A., Ishikawa S., Itoh M., Kanda H., Kasahara H., Kobayashi N., Maeda Y., Mitsumoto S., Nakamura S., Nonaka K., Ong H.J., Oshiro H., Otake Y., Sakai H., Taketani A., Tamii A., Tran D.T., Wakasa T., Wakabayashi Y., Wakui T.
Physical Review C 103 ( 4 ) 2021年4月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
We present a precise measurement of the cross section, proton and He3 analyzing powers, and spin correlation coefficient Cy,y for p-He3 elastic scattering near 65 MeV, and a comparison with rigorous four-nucleon scattering calculations based on realistic nuclear potentials and a model with Δ-isobar excitation. Clear discrepancies are seen in some of the measured observables in the regime around the cross section minimum. Theoretical predictions using scaling relations between the calculated cross section and the He3 binding energy are not successful in reproducing the data. Large sensitivity to the NN potentials and rather small Δ-isobar effects in the calculated cross section are noticed as different features from those in the deuteron-proton elastic scattering. The results obtained above indicate that p-He3 scattering at intermediate energies is an excellent tool to explore nuclear interactions not accessible by three-nucleon scattering.
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Yang Z.H., Kubota Y., Corsi A., Yoshida K., Sun X.X., Li J.G., Kimura M., Michel N., Ogata K., Yuan C.X., Yuan Q., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Roussé J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Xu F.R., Yasuda J., Yoneda K., Zenihiro J., Zhou S.G., Zuo W., Uesaka T.
Physical Review Letters 126 ( 8 ) 082501 2021年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
A kinematically complete quasifree (p,pn) experiment in inverse kinematics was performed to study the structure of the Borromean nucleus B17, which had long been considered to have a neutron halo. By analyzing the momentum distributions and exclusive cross sections, we obtained the spectroscopic factors for 1s1/2 and 0d5/2 orbitals, and a surprisingly small percentage of 9(2)% was determined for 1s1/2. Our finding of such a small 1s1/2 component and the halo features reported in prior experiments can be explained by the deformed relativistic Hartree-Bogoliubov theory in continuum, revealing a definite but not dominant neutron halo in B17. The present work gives the smallest s- or p-orbital component among known nuclei exhibiting halo features and implies that the dominant occupation of s or p orbitals is not a prerequisite for the occurrence of a neutron halo.
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Formation of α clusters in dilute neutron-rich matter. 査読あり
Tanaka J, Yang Z, Typel S, Adachi S, Bai S, van Beek P, Beaumel D, Fujikawa Y, Han J, Heil S, Huang S, Inoue A, Jiang Y, Knösel M, Kobayashi N, Kubota Y, Liu W, Lou J, Maeda Y, Matsuda Y, Miki K, Nakamura S, Ogata K, Panin V, Scheit H, Schindler F, Schrock P, Symochko D, Tamii A, Uesaka T, Wagner V, Yoshida K, Zenihiro J, Aumann T
Science (New York, N.Y.) 371 ( 6526 ) 260 - 264 2021年1月
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Experimental study of <sup>4</sup>n with <sup>8</sup>He(p,2p) reaction 査読あり
Huang S.W., Yang H., Marqués F.M., Achouri N.L., Ahn D.S., Aumann T., Baba H., Beaumel D., Böhmer M., Boretzky K., Caamano M., Chen S., Chiga N., Cortés M.L., Cortina D., Doornenbal P., Douma C.A., Dufter F., Feng J., Fernández-Domínguez B., Elekes Z., Forsberg U., Fujino T., Fukuda N., Gašparić I., Ge Z., Gernhauser R., Gheller J.M., Gibelin J., Gillibert A., Godoy B.M., Halász Z., Harada T., Harakeh M.N., Hirayama A., Inabe N., Isobe T., Kahlbow J., Kalantar-Nayestanaki N., Kim D., Kim S., Knösel M.A., Kobayashi T., Kondo Y., Koseoglou P., Kubota Y., Kuti I., Lehr C., Li P.J., Liu Y., Maeda Y., Masuoka S., Matsumoto M., Mayer J., Miki H., Miwa M., Murray I., Nakamura T., Obertelli A., Orr N., Otsu H., Panin V., Park S., Parlog M., Paschalis S., Potlog M., Reichert S., Revel A., Rossi D., Saito A., Sasano M., Sato H., Scheit H., Schindler F., Shimada T., Shimizu Y., Shimoura S., Stefan I., Storck S., Stuhl L., Suzuki H., Symochko D., Takeda H., Takeuchi S., Tanaka J., Togano Y., Tomai T., Törnqvsit H.T., Tscheuschner J., Uesaka T., Wagner V., Wimmer K., Yamada H., Yang B., Yang L., Yasuda Y., Yoneda K., Zanetti L., Zenihiro J., Elidiano T.
Journal of Physics: Conference Series 1643 ( 1 ) 2020年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of Physics: Conference Series
The tetraneutron has attracted the attention of nuclear physicists during the past decades, but there is still no unambiguous confirmation of its existence or non-existence. A new experiment based on 8He(p,2p)7H{t+4 n} reaction, with direct detection of the four neutrons, has been carried out at RIBF, which can hopefully help to draw a definite conclusion on the tetraneutron system.
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Spectroscopy of <sup>16</sup>B from quasi-free (p,pn) reaction with <sup>17</sup>B 査読あり
Yang Z.H., Kubota Y., Corsi A., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Roussé J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y., Tabata M., Togano Y., Tsubota J., Uesaka T., Yasuda J., Yoneda K., Zenihiro J.
Journal of Physics: Conference Series 1643 ( 1 ) 2020年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of Physics: Conference Series
Spectroscopy of 16B plays an essential role in understanding the halo structure in 17B, but very limited knowledge has so far been obtained. We have carried out a kinematically complete measurement on the spectroscopy of 16B by using quasi-free (p,pn) reaction on 17B. The level scheme of 16B up to 5 MeV was made clear for the first time.
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Inoue A., Tamii A., Chan P., Hayakawa S., Kobayashi N., Maeda Y., Nonaka K., Shima T., Shimizu H., Tran D.T., Wang X., Yamaguchi H., Yang L., Yang Z.
Journal of Physics Conference Series 1643 ( 1 ) 2020年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics Conference Series
Our research goal is to measure the cross section of the 7Be(d, p) reaction to find a solution for the cosmological the 7Li problem, which is an overestimation of the primordial 7Li abundance in the standard Big-Bang nucleosynthesis (BBN) model. We developed a method to produce an unstable 7Be target to measure the reaction in normal kinematics in a high-resolution measurement. We performed an experiment to produce the 7Be target and also to measure the cross section of the 7Be(d, p)8Be reaction with the produced 7Be target at the tandem facility, Kobe University. A 2.36 MeV proton beam irradiated a Li target to transmute 7Li particles to 7Be particles via the 7Li(p, n)7Be reaction. We produced 2.6 1013 7Be particles in the target after two days' proton irradiation. After the target production, the beam ion was changed to deuterons with energies of 0.6, 1.0, and 1.6 MeV to measure the 7Be(d, p) reaction. The outgoing protons were measured by two ΔE-E silicon telescopes placed at 30 and 45 . We report the preliminary results of this experiment, including the 7Be(d, p) cross section.
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Surface Localization of the Dineutron in Li 11 査読あり
Kubota Y., Corsi A., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kikuchi Y., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ogata K., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Roussé J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J., Uesaka T.
Physical Review Letters 125 ( 25 ) 2020年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
The formation of a dineutron in the Li11 nucleus is found to be localized to the surface region. The experiment measured the intrinsic momentum of the struck neutron in Li11 via the (p,pn) knockout reaction at 246 MeV/nucleon. The correlation angle between the two neutrons is, for the first time, measured as a function of the intrinsic neutron momentum. A comparison with reaction calculations reveals the localization of the dineutron at r∼3.6 fm. The results also support the density dependence of dineutron formation as deduced from Hartree-Fock-Bogoliubov calculations for nuclear matter.
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Evolution of the dipole polarizability in the stable tin isotope chain 査読あり
Bassauer S., von Neumann-Cosel P., Reinhard P.G., Tamii A., Adachi S., Bertulani C.A., Chan P.Y., Colò G., D'Alessio A., Fujioka H., Fujita H., Fujita Y., Gey G., Hilcker M., Hoang T.H., Inoue A., Isaak J., Iwamoto C., Klaus T., Kobayashi N., Maeda Y., Matsuda M., Nakatsuka N., Noji S., Ong H.J., Ou I., Paar N., Pietralla N., Ponomarev V.Y., Reen M.S., Richter A., Roca-Maza X., Singer M., Steinhilber G., Sudo T., Togano Y., Tsumura M., Watanabe Y., Werner V.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 810 2020年11月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
The dipole polarizability of stable even-mass tin isotopes Sn was extracted from inelastic proton scattering experiments at 295 MeV under very forward angles performed at RCNP. Predictions from energy density functionals cannot account for the present data and the polarizability of Pb simultaneously. The evolution of the polarizabilities in neighboring isotopes indicates a kink at Sn while all model results show a nearly linear increase with mass number after inclusion of pairing corrections. 112,114,116,118,120,124 208 120
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Electric and magnetic dipole strength in Sn 112,114,116,118,120,124 査読あり
Bassauer S., Von Neumann-Cosel P., Reinhard P.G., Tamii A., Adachi S., Bertulani C.A., Chan P.Y., D'Alessio A., Fujioka H., Fujita H., Fujita Y., Gey G., Hilcker M., Hoang T.H., Inoue A., Isaak J., Iwamoto C., Klaus T., Kobayashi N., Maeda Y., Matsuda M., Nakatsuka N., Noji S., Ong H.J., Ou I., Pietralla N., Ponomarev V.Y., Reen M.S., Richter A., Singer M., Steinhilber G., Sudo T., Togano Y., Tsumura M., Watanabe Y., Werner V.
Physical Review C 102 ( 3 ) 2020年9月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
Background: There is renewed interest in electric dipole strength distributions for a variety of reasons including the extraction of the dipole polarizability related to properties of the symmetry energy and a measure for the neutron skin thickness, understanding the structure of low-energy E1 strength in nuclei with neutron excess, and establishing the systematics of the isovector giant dipole resonance (IVGDR). Inelastic proton scattering at energies of a few hundred MeV and very forward angles including 0â has been established as a tool for the study of electric and magnetic dipole strength distributions in nuclei. Purpose: The present work aims at a systematic investigation of the electric and magnetic dipole strength distributions in the chain of stable even-mass tin isotopes. Methods: Inelastic proton scattering experiments were performed at the Research Center for Nuclear Physics, Osaka, with a 295-MeV beam covering laboratory angles 0â-6â and excitation energies 6-22 MeV. Cross sections due to E1 and M1 excitations were extracted with a multipole decomposition analysis (MDA) and then converted to reduced transition probabilities with the "virtual photon method"for E1 and the "unit cross section method"for M1 excitations, respectively. Including a theory-aided correction for the high-excitation-energy region not covered experimentally, the electric dipole polarizability was determined from the E1 strength distributions. Results: Total photoabsorption cross sections derived from the E1 and M1 strength distributions show significant differences compared to those from previous (γ,xn) experiments in the energy region of the IVGDR. The widths of the IVGDR deduced from the present data with a Lorentz parametrization show an approximately constant value of about 4.5 MeV in contrast to the large variations between isotopes observed in previous work. The IVGDR centroid energies are in good correspondence to expectations from empirical systematics of their mass dependence. Furthermore, a study of the dependence of the IVGDR energies on bulk matter properties is presented. The E1 strengths below neutron threshold show fair agreement with results from (γ,γ) experiments on Sn112,116,120,124 in the energy region between 6 and 7 MeV, where also isoscalar E1 strength was found for Sn124. At higher excitation energies, large differences are observed, pointing to a different nature of the excited states with small ground-state branching ratios. The isovector spin-M1 strengths exhibit a broad distribution between 6 and 12 MeV in all studied nuclei. Conclusions: The present results contribute to the solution of a variety of nuclear structure problems including the systematics of the energy and width of the IVGDR, the structure of low-energy E1 strength in nuclei, new constraints to energy density functionals (EDFs) aiming at a systematic description of the dipole polarizability across the nuclear chart, from which properties of the symmetry energy can be derived, and the systematics of the isovector spin-M1 strength in heavy nuclei.
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Sun X.H., Wang H., Otsu H., Sakurai H., Ahn D.S., Aikawa M., Fukuda N., Isobe T., Kawakami S., Koyama S., Kubo T., Kubono S., Lorusso G., Maeda Y., Makinaga A., Momiyama S., Nakano K., Nakayama S., Niikura M., Shiga Y., Söderström P.A., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Watanabe Y., Watanabe Y., Yamasaki H., Yang X.F., Ye Y.L., Yoshida K.
Physical Review C 101 ( 6 ) 2020年6月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
The spallation and fragmentation reactions of Xe136 induced by proton, deuteron, and carbon targets at 168 MeV/nucleon were studied at RIKEN Radioactive Isotope Beam Factory via the inverse kinematics technique. A wide range of isotopic distributions of the reaction cross sections has been obtained and systematically analyzed by using the Particle and Heavy Ion Transport code System (PHITS) including dynamical and intranuclear cascade processes plus evaporation process, the semi-empirical parametrization for residue cross sections in spallation reactions (SPACS) and empirical parametrization of fragmentation cross sections (EPAX), and the deuteron-induced reaction analysis code system (DEURACS) incorporating the deuteron breakup effect. The carbon target has exhibited strong potential to produce light-mass isotopes far away from the projectile, in comparison to proton and deuteron targets. This may be attributed to the possible higher excitation energies of the prefragment induced by heavier target. It is demonstrated that the deuteron target has advantages to produce isotopic chains very close to the projectile and also the neutron-rich nuclei in other isotopic chains far away from the projectile, due basically to its structure property and the effect of the breakup neutron in the peripheral collision processes. The proton target has the advantage of being able to produce isotopes produced via charge-pickup reactions in comparison to other targets. The prediction powers of various calculation codes are examined with respective to the experimental isotopic distributions. The target and energy dependences of the produced mass distributions are also discussed.
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How Different is the Core of F 25 from O g. s. 24 ? 査読あり
Tang T.L., Uesaka T., Kawase S., Beaumel D., Dozono M., Fujii T., Fukuda N., Fukunaga T., Galindo-Uribarri A., Hwang S.H., Inabe N., Kameda D., Kawahara T., Kim W., Kisamori K., Kobayashi M., Kubo T., Kubota Y., Kusaka K., Lee C.S., Maeda Y., Matsubara H., Michimasa S., Miya H., Noro T., Obertelli A., Ogata K., Ota S., Padilla-Rodal E., Sakaguchi S., Sakai H., Sasano M., Shimoura S., Stepanyan S.S., Suzuki H., Takaki M., Takeda H., Tokieda H., Wakasa T., Wakui T., Yako K., Yanagisawa Y., Yasuda J., Yokoyama R., Yoshida K., Yoshida K., Zenihiro J.
Physical Review Letters 124 ( 21 ) 2020年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
The structure of a neutron-rich F25 nucleus is investigated by a quasifree (p,2p) knockout reaction at 270A MeV in inverse kinematics. The sum of spectroscopic factors of π0d5/2 orbital is found to be 1.0±0.3. However, the spectroscopic factor with residual O24 nucleus being in the ground state is found to be only 0.36±0.13, while those in the excited state is 0.65±0.25. The result shows that the O24 core of F25 nucleus significantly differs from a free O24 nucleus, and the core consists of ∼35% O24g.s.. and ∼65% excited O24. The result may infer that the addition of the 0d5/2 proton considerably changes neutron structure in F25 from that in O24, which could be a possible mechanism responsible for the oxygen dripline anomaly.
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α-clustering in Heavy Nuclei 112–124Sn Probed with \((p,p\alpha )\) Reaction 査読あり 国際共著
Zaihong Yang, Junki Tanaka, Stefan Typel, Thomas Aumann, Juzo Zenihiro, Satoshi Adachi, Shiwei Bai, Patrick van Beek, Didier Beaumel, Yuki Fujikawa, Jiaxing Han, Sebastian Heil, Siwei Huang, Azusa Inoue, Ying Jiang, Marco Knösel, Nobuyuki Kobayashi, Yuki Kubota, Wei Liu, Jianlin Lou, Yukie Maeda, Yohei Matsuda, Kenjiro Miki, Shoken Nakamura, Kazuyuki Ogata, Valerii Panin, Heiko Scheit, Fabia Schindler, Philipp Schrock, Dmytro Symochko, Atsushi Tamii, Tomohiro Uesaka, Vadim Wagner, Kazuki Yoshida
Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15) 2020年3月
掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of the Physical Society of Japan
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Search for α-Condensed State in 20Ne 査読あり
Yuki Fujikawa, Satoshi Adachi, Takahiro Kawabata, Miho Tsumura, Akane Sakaue, Kento Inaba, Takanobu Doi, Ryohei Fujii, Haruki Furuta, Takeshi Harada, Shintaro Okamoto, Ryohei Sekiya, Atsushi Tamii, Nobuyuki Kobayashi, Tatsuya Furuno, Masatoshi Itoh, Yohei Matsuda, Shunya Ishida, Yukie Maeda, Kotaro Nonaka, Chihiro Iwamoto, Hidetoshi Akimune
Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15) 2020年3月
掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of the Physical Society of Japan
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Search for α-cluster States in 13C 査読あり
Kento Inaba, Takahiro Kawabata, Yoshiko Sasamoto, Mamoru Fujiwara, Kichiji Hatanaka, Keisuke Itoh, Masatoshi Itoh, Keigo Kawase, Hiroaki Matsubara, Yukie Maeda, Kousuke Nakanishi, Kenji Suda, Satoshi Sakaguchi, Youhei Shimizu, Atsushi Tamii, Yuji Tameshige, Makoto Uchida, Tomohiro Uesaka, Hidetomo P. Yoshida
Proceedings of the 15th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG15) 2020年3月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of the Physical Society of Japan
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Measurement of 3He analyzing power for p-3He scattering using the polarized 3He target 査読あり
Atomu Watanabe, Shinnosuke Nakai, Kimiko Sekiguchi, Tomomi Akieda, Daijiro Etoh, Minami Inoue, Yoshinori Inoue, Kenta Kawahara, Hiroshi Kon, Kenjiro Miki, Tomoyuki Mukai, Daisuke Sakai, Shun Shibuya, Yuta Shiokawa, Takahiro Taguchi, Hiroo Umetsu, Yuta Utsuki, Yasunori Wada, Morihiro Watanabe, Masatoshi Itoh, Takashi Ino, Takashi Wakui, Kichiji Hatanaka, Hiroki Kanda, Hooi Jin Ong, Dinh Trong Tran, Shuhei Goto, Yuma Hirai, Daiki Inomoto, Hina Kasahara, Shinji Mitsumoto, Hisanori Oshiro, Tomotsugu Wakasa, Yukie Maeda, Kotaro Nonaka, Hideyuki Sakai, Tomohiro Uesaka
SciPost Physics Proceedings ( 3 ) 2020年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Stichting SciPost
<jats:p>Proton–<jats:inline-formula><jats:alternatives><jats:tex-math>^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
scattering is one of the good probes to study the
<jats:inline-formula><jats:alternatives><jats:tex-math>T=3/2</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>T</mml:mi><mml:mo>=</mml:mo><mml:mn>3</mml:mn><mml:mi>/</mml:mi><mml:mn>2</mml:mn></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>
channel of three–nucleon forces. We have measured
<jats:inline-formula><jats:alternatives><jats:tex-math>^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
analyzing powers for <jats:inline-formula><jats:alternatives><jats:tex-math>p-^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>p</mml:mi><mml:msup><mml:mo>−</mml:mo><mml:mn>3</mml:mn></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>He
elastic scattering with the polarized <jats:inline-formula><jats:alternatives><jats:tex-math>^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
target at <jats:inline-formula><jats:alternatives><jats:tex-math>70</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>70</mml:mn></mml:math></jats:alternatives></jats:inline-formula>
and <jats:inline-formula><jats:alternatives><jats:tex-math>100</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mn>100</mml:mn></mml:math></jats:alternatives></jats:inline-formula>
MeV. In the conference the data were compared with the theoretical
predictions based on the modern nucleon–nucleon potentials. Large
discrepancies were found between the data and the calculations at the
angles where the <jats:inline-formula><jats:alternatives><jats:tex-math>^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
analyzing power takes the minimum and maximum values.</jats:p> -
Measurement for p–3He elastic scattering with a 65 MeV polarized proton beam 査読あり
Shinnosuke Nakai, Kimiko Sekiguchi, Kenjiro Miki, Atomu Watanabe, Shun Shibuya, Masataka Watanabe, Katsumasa Kawahara, Daisuke Sakai, Y. Wada, Hiroo Umetsu, Masatoshi Itoh, Kichiji Hatanaka, Atsushi Tamii, N. Kobayashi, A. Inoue, S. Nakamura, Tomotsugu Wakasa, Shinji Mitsumoto, H. Ohshiro, Syuhei Goto, Yukie Maeda, Hideyuki Sakai
SciPost Physics Proceedings ( 3 ) 2020年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Stichting SciPost
<jats:p>We measured the cross section and the proton analyzing power
<jats:inline-formula><jats:alternatives><jats:tex-math>A_y</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>A</mml:mi><mml:mi>y</mml:mi></mml:msub></mml:math></jats:alternatives></jats:inline-formula>
for <jats:inline-formula><jats:alternatives><jats:tex-math>p</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math></jats:alternatives></jats:inline-formula>–<jats:inline-formula><jats:alternatives><jats:tex-math>^3</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
elastic scattering at the angles <jats:inline-formula><jats:alternatives><jats:tex-math>\theta = 26.9^{\circ}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>θ</mml:mi><mml:mo>=</mml:mo><mml:msup><mml:mn>26.9</mml:mn><mml:mo>∘</mml:mo></mml:msup></mml:mrow></mml:math></jats:alternatives></jats:inline-formula>–<jats:inline-formula><jats:alternatives><jats:tex-math>170.1^{\circ}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mn>170.1</mml:mn><mml:mo>∘</mml:mo></mml:msup></mml:math></jats:alternatives></jats:inline-formula>
in the center of mass system with a 65 MeV polarized proton beam. We
compared the data with the rigorous numerical calculations based on the
various nucleon–nucleon potentials. For the cross section, clear
discrepancy is seen at the angles where the cross section takes minimum.
For the proton analyzing power <jats:inline-formula><jats:alternatives><jats:tex-math>A_y</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>A</mml:mi><mml:mi>y</mml:mi></mml:msub></mml:math></jats:alternatives></jats:inline-formula>,
the calculations have moderate agreements with the data. In this
proceedings, we show only the experimental results.</jats:p> -
Measurement of spin correlation coefficients p-$^{3}$He scattering at 65 MeV 査読あり
Minami Inoue, Kimiko Sekiguchi, Kenjiro Miki, Atomu Watanabe, Shinnosuke Nakai, Shun Shibuya, Daisuke Sakai, Yuta Utsuki, Hiroo Umetsu, Kichiji Hatanaka, Hiroki Kanda, Hooi Jin Ong, Tomotsugu Wakasa, Syuhei Goto, Shinji Mitsumoto, Daiki Inomoto, Hina Kasahara, Takashi Ino, Hideyuki Sakai, Yukie Maeda, Kotaro Nonaka, Takashi Wakui, Masatoshi Itoh
SciPost Physics Proceedings ( 3 ) 2020年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Stichting SciPost
<jats:p>We performed the experiment of p–<jats:inline-formula><jats:alternatives><jats:tex-math>^{3}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
scattering at 65 MeV by using polarized proton beams and the newly
constructed polarized <jats:inline-formula><jats:alternatives><jats:tex-math>^{3}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
target. The proton analyzing power <jats:inline-formula><jats:alternatives><jats:tex-math>A_{y}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>A</mml:mi><mml:mi>y</mml:mi></mml:msub></mml:math></jats:alternatives></jats:inline-formula>,
the <jats:inline-formula><jats:alternatives><jats:tex-math>^{3}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msup><mml:mi /><mml:mn>3</mml:mn></mml:msup></mml:math></jats:alternatives></jats:inline-formula>He
analyzing power <jats:inline-formula><jats:alternatives><jats:tex-math>A_{y}^{T}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>A</mml:mi><mml:mi>y</mml:mi><mml:mi>T</mml:mi></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>,
and the spin correlation coefficient <jats:inline-formula><jats:alternatives><jats:tex-math>C_{yy}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>C</mml:mi><mml:mrow><mml:mi>y</mml:mi><mml:mi>y</mml:mi></mml:mrow></mml:msub></mml:math></jats:alternatives></jats:inline-formula>
were measured. In the conference, the experimental data were compared
with the rigorous numerical calculations based on various nuclear
potentials. Large discrepancies between the experimental data and the
calculations were found in the <jats:inline-formula><jats:alternatives><jats:tex-math>A_{y}^{T}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>A</mml:mi><mml:mi>y</mml:mi><mml:mi>T</mml:mi></mml:msubsup></mml:math></jats:alternatives></jats:inline-formula>
and the <jats:inline-formula><jats:alternatives><jats:tex-math>{C_{yy}}</jats:tex-math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>C</mml:mi><mml:mrow><mml:mi>y</mml:mi><mml:mi>y</mml:mi></mml:mrow></mml:msub></mml:math></jats:alternatives></jats:inline-formula>
at the backward angles.</jats:p> -
Experimental Analysis of Few-Body Physics 招待あり 査読あり
Maeda Y.
Springer Proceedings in Physics 238 543 - 548 2020年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Springer Proceedings in Physics
© Springer Nature Switzerland AG 2020. The differential cross sections of the elastic Nd scattering at the energy below 150 MeV can be well reproduced by introducing 3NF in the Faddeev calculations based on modern nucleon-nucleon (NN) interactions. On the other hand, some spin-observables, and the differential cross sections of Nd elastic and inelastic scatterings at over 250 MeV show large discrepancies between the data and the Faddeev calculations with 3NF. It indicates the presence of the missing features of the three nucleon systems. For the systematic study about these large discrepancies at higher energy regions, we measured the differential cross sections and the vector analyzing power for the inclusive and exclusive breakup reaction at 170 and 250 MeV. The experiments were carried out at RCNP. The data were compared with the results of the Faddeev calculations with and without the 3NF.
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Compelete Set of Deuteron Analyzing Powers for dp Elastic Scattering at 70–300 MeV/nucleon and Three-Nucleon Forces 招待あり 査読あり
Sekiguchi, K., Wada, Y., Watanabe, A., Maeda, Y., 他
Springer Proceedings in Physics 238 507 - 511 2020年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
-
Study of Multi-neutron Systems with SAMURAI Spectrometer 査読あり 国際共著
Yang Z.H., Marqués F.M., Achouri N.L., Ahn D.S., Aumann T., Baba H., Beaumel D., Böhmer M., Boretzky K., Caamaño M., Chen S., Chiga N., Cortés M.L., Cortina D., Doornenbal P., Douma C.A., Dufter F., Feng J., Fernández-Domínguez B., Elekes Z., Forsberg U., Fujino T., Fukuda N., Gašparić I., Ge Z., Gernhäuser R., Gheller J.M., Gibelin J., Gillibert A., Godoy B.M., Halász Z., Harada T., Harakeh M.N., Hirayama A., Huang S.W., Inabe N., Isobe T., Kahlbow J., Kalantar-Nayestanaki N., Kim D., Kim S., Knösel M.A., Kobayashi T., Kondo Y., Koseoglou P., Kubota Y., Kuti I., Lehr C., Li P.J., Liu Y., Maeda Y., Masuoka S., Matsumoto M., Mayer J., Miki H., Miwa M., Murray I., Nakamura T., Obertelli A., Orr N.A., Otsu H., Panin V., Park S., Parlog M., Paschalis S., Potlog M., Reichert S., Revel A., Rossi D., Saito A., Sasano M., Sato H., Scheit H., Schindler F., Shimada T., Shimizu Y., Shimoura S., Stefan I., Storck S., Stuhl L., Suzuki H., Symochko D., Takeda H., Takeuchi S., Tanaka J., Togano Y., Tomai T., Törnqvsit H.T., Tscheuschner J., Uesaka T., Wagner V., Wimmer K., Yamada H., Yang B., Yang L., Yasuda Y., Yoneda K., Zanetti L., Zenihiro J.
Springer Proceedings in Physics 238 529 - 534 2020年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Springer Proceedings in Physics
The tetraneutron has been drawing the attention of the nuclear physics community for decades, but a firm conclusion on its existence and properties is still far from being reached despite many experimental and theoretical efforts. New measurements have recently been performed at RIBF with the SAMURAI spectrometer by applying complementary reaction probes, which will help to pin down the properties of this four-neutron system.
-
Structure of Beryllium Isotopes Beyond the Neutron Dripline 査読あり
Monteagudo B., Gibelin J., Marqués F.M., Corsi A., Kubota Y., Orr N.A., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Rousse J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Tabata M., Togano Y., Tsubota J., Uesaka T., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J.
Springer Proceedings in Physics 238 331 - 335 2020年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Springer Proceedings in Physics
Dineutron decay is a forefront topic in nuclear structure that still lacks a firm experimental claim. The spontaneous emission of a dineutron should be favored in nuclei that are unbound with respect to two-neutron emission but bound with respect to single-neutron emission. A very interesting candidate can be found by adding two neutrons to the most neutron-rich Beryllium isotope, (formula presented)Be, a well-known 2n-halo nucleus. The intriguing nature of the phenomenon has motivated recent theoretical calculations and a new experimental campaign at RIKEN RIBF. In this work, the decay properties of (formula presented)Be and the structure of (formula presented)Be have been probed via the proton-knockout reaction from a (formula presented)B beam.
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Measurement for p–(formula presented)He Elastic Scattering with a 65 MeV Polarized Proton Beam 査読あり
Nakai S., Sekiguchi K., Miki K., Watanabe A., Mukai T., Shibuya S., Watanabe M., Kawahara K., Sakai D., Wada Y., Shiokawa Y., Taguchi T., Eto D., Akieda T., Kon H., Ito M., Ino T., Hatanaka K., Tamii A., Ong H.J., Kobayashi N., Inoue A., Nakamura S., Wakasa T., Mitsumoto S., Ohshiro H., Goto S., Maeda Y., Sakai H., Uesaka T., Wakui T.
Springer Proceedings in Physics 238 513 - 516 2020年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Springer Proceedings in Physics
We performed the measurement of the cross section and the proton analyzing power (formula presented) for p–(formula presented)He elastic scattering with a 65 MeV polarized proton beam at Research Center for Nuclear Physics (RCNP), Osaka University. The proton analyzing power (formula presented) data are compared with the theoretical calculations based on the nucleon–nucleon potential (INOY04).
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Sekiguchi K., Wada Y., Watanabe A., Eto D., Akieda T., Kon H., Miki K., Sakamoto N., Sakai H., Sasano M., Shimizu Y., Suzuki H., Uesaka T., Yanagisawa Y., Dozono M., Kawase S., Kubota Y., Yako K., Maeda Y., Kawakami S., Yamamoto T., Sakaguchi S., Wakasa T., Yasuda J., Ohkura A., Shindo Y., Tabata M., Milman E., Chebotaryov S., Okamura H., Tang T.L.
Springer Proceedings in Physics 238 507 - 511 2020年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Springer Proceedings in Physics
In order to study three-nucleon force (3NF) effects in three-nucleon scattering we performed the measurements of the cross sections and the spin observables for the deuteron–proton (dp) scattering with the polarized deuteron beams at the incident energies up to 135 MeV/nucleon. Recently we have extended the measurements at the RIKEN RI Beam Factory (RIBF) with the polarized deuteron beams at 190, 250, and 300 MeV/nucleon.
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Enhancement of element production by incomplete fusion reaction with weakly bound deuteron 査読あり
Wang H., Otsu H., Chiga N., Kawase S., Takeuchi S., Sumikama T., Koyama S., Sakurai H., Watanabe Y., Nakayama S., Ahn D.S., Baba H., Chen S.D., Chikaato K., Cortés M.L., Fukuda N., Hirayama A., Hosoda R., Isobe T., Kawakami S., Kondo Y., Kubono S., Maeda Y., Masuoka S., Michimasa S., Murray I., Nakajima R., Nakamura T., Nakano K., Nishimura M., Ozaki T., Saito A., Saito T., Sato H., Shimizu Y., Shimoura S., Söderström P.A., Soudo Y., Sun X.H., Suwa J., Suzuki D., Suzuki H., Takeda H., Takechi M., Togano Y., Tomai T., Yamada H., Yasuda M., Yoshida K.
Communications Physics 2 ( 1 ) 2019年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Communications Physics
Searching for effective pathways for the production of proton-rich and neutron-rich isotopes is one of the main driving forces behind experimental and theoretical nuclear reaction studies as well as for practical applications in nuclear transmutation of radioactive waste. To produce nuclei effectively, an optimal combination of reaction mechanism and energy is required. We report a study on incomplete fusion induced by deuteron, which contains one proton and one neutron with a weak binding energy and is easily broken up. This reaction study was achieved by measuring directly the cross sections for both proton and deuteron for Pd at 50 MeV/u via inverse kinematics technique. The results provide direct experimental evidence for the onset of a cross-section enhancement at high energy, indicating the potential for incomplete fusion induced by loosely-bound nuclei for creating proton-rich isotopes and nuclear transmutation of radioactive waste. 107
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Structure of <sup>13</sup>Be probed via quasi-free scattering 査読あり
Corsi A., Kubota Y., Casal J., Gómez-Ramos M., Moro A.M., Authelet G., Baba H., Caesar C., Calvet D., Delbart A., Dozono M., Feng J., Flavigny F., Gheller J.M., Gibelin J., Giganon A., Gillibert A., Hasegawa K., Isobe T., Kanaya Y., Kawakami S., Kim D., Kiyokawa Y., Kobayashi M., Kobayashi N., Kobayashi T., Kondo Y., Korkulu Z., Koyama S., Lapoux V., Maeda Y., Marqués F.M., Motobayashi T., Miyazaki T., Nakamura T., Nakatsuka N., Nishio Y., Obertelli A., Ohkura A., Orr N.A., Ota S., Otsu H., Ozaki T., Panin V., Paschalis S., Pollacco E.C., Reichert S., Rousse J.Y., Saito A.T., Sakaguchi S., Sako M., Santamaria C., Sasano M., Sato H., Shikata M., Shimizu Y., Shindo Y., Stuhl L., Sumikama T., Sun Y.L., Tabata M., Togano Y., Tsubota J., Uesaka T., Yang Z.H., Yasuda J., Yoneda K., Zenihiro J.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 797 2019年10月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
We present an investigation of the structure of Be obtained via a kinematically complete measurement of the (p,pn) reaction in inverse kinematics at 265 MeV/nucleon. The relative energy spectrum of Be is compared to Transfer-to-the-Continuum calculations which use as structure inputs the overlaps of the Be ground-state wave function, computed in a three-body model, with the unbound states of the Be residual nucleus. The key role of neutron p-wave orbital in the interpretation of the low-relative-energy part of the spectrum is discussed. 13 13 14 13
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Isotope production in proton-, deuteron-, and carbon-induced reactions on Nb 93 at 113 MeV/nucleon 査読あり
Nakano K., Watanabe Y., Kawase S., Wang H., Otsu H., Sakurai H., Takeuchi S., Togano Y., Nakamura T., Maeda Y., Ahn D., Aikawa M., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Ichihara T., Isobe T., Kawakami S., Kin T., Kondo Y., Koyama S., Kubo T., Kubono S., Uesaka M., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., Suzuki H., Takeda H., Taniuchi R., Tsubota J., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
Physical Review C 100 ( 4 ) 2019年10月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
© 2019 American Physical Society. Isotope-production cross sections for p-, d-, and C-induced spallation reactions on Nb93 at 113 MeV/nucleon were measured using the inverse-kinematics method employing secondary targets of CH2, CD2, and C. The measured cross sections for Mo90, Nb90, Y86,88 produced by p-induced reactions were found to be consistent with those measured by the conventional activation method. We performed benchmark tests of the reaction models INCL-4.6, JQMD, and JQMD-2.0 implemented in the Particle and Heavy Ion Transport code System (PHITS) and of the nuclear data libraries JENDL-4.0/HE, TENDL-2017, and ENDF/B-VIII.0. The model calculations also showed generally good agreement with the measured isotope-production cross sections for p-, d-, and C-induced reactions. It also turns out that, among the three nuclear data libraries, JENDL-4.0/HE provides the best agreement with the measured data for the p-induced reactions. We compared the present Nb93 data with the Zr93 data, that were measured previously by the same inverse kinematics method (Kawase et al., Prog. Theor. Exp. Phys. 2017, 093D03 (2017)2050-391110.1093/ptep/ptx110), with particular attention to the effect of neutron-shell closure on isotope production in p- and d-induced spallation reactions. The isotopic distributions of the measured production cross sections in the Zr93 data showed noticeable jumps at neutron number N=50 in the isotopic chains of ΔZ=0 and -1, whereas no such jump appeared in isotopic chain of ΔZ=0 in the Nb93 data. From INCL-4.6 + GEM calculations, we found that the jump formed in the evaporation process is smeared out by the intranuclear cascade component in Nb91 produced by the Nb93(p,p2n) and (d,d2n) reactions on Nb93. Moreover, for Nb93, the distribution of the element-production cross sections as a function of the change in proton number ΔZ is shifted to smaller ΔZ than for Zr93, because the excited Nb prefragments generated by the cascade process are more likely to emit protons than the excited Zr prefragments, due to the smaller proton-separation energies of the Nb isotopes.
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Coulomb breakup reactions of <sup>93,94</sup> Zr in inverse kinematics 査読あり
Takeuchi S., Nakamura T., Shikata M., Togano Y., Kondo Y., Tsubota J., Ozaki T., Saito A., Otsu H., Wang H., Sakurai H., Watanabe Y., Kawase S., Ahn D., Aikawa M., Ando T., Araki S., Chen S., Chiga N., Doornenbal P., Ebata S., Fukuda N., Isobe T., Kawakami S., Kin T., Koyama S., Kubono S., Maeda Y., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakano K., Niikura M., Ogata K., Saito T., Shiga Y., Shimizu Y., Shimoura S., Sumikama T., Söderstrom P., Suzuki H., Takeda H., Taniuchi R., Uesaka M., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
Progress of Theoretical and Experimental Physics 2019 ( 1 ) 2019年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
© The Author(s) 2019. Published by Oxford University Press on behalf of the Physical Society of Japan. Coulomb breakup reactions of 93,94 Zr have been studied in inverse kinematics at incident beam energies of about 200 MeV/nucleon in order to evaluate neutron capture reaction methods. The 93 Zr(n,γ) 94 Zr reaction is particularly important as a candidate nuclear transmutation reaction for the long-lived fission product 93 Zr in nuclear power plants. One- and two-neutron removal cross sections on Pb and C targets were measured to deduce the inclusive Coulomb breakup cross sections, 375 ± 29 (stat.) ± 30 (syst.) and 403 ± 26 (stat.) ± 31 (syst.) mb for 93 Zr and 94 Zr, respectively. The results are compared with estimates using the standard Lorentzian model and microscopic calculations. The results reveal a possible contribution of the pygmy dipole resonance or giant quadrupole resonance in the Coulomb breakup reactions of 94 Zr.
DOI： 10.1093/ptep/pty138
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低エネルギー電子散乱による陽子電荷半径測定 招待あり 査読あり
須田利美，青柳泰平，本多佑記，前田幸重， 三浦禎雄，武藤俊哉，南波和希，南部健一， 髙橋健，玉江忠明，塚田暁
加速器 15 ( 2 ) 52 2018年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌）
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Inoue A., Tamii A., Abe K., Adachi S., Aoi N., Asai M., Fukuda M., Gey G., Hashimoto T., Ideguchi E., Isaak J., Kobayashi N., Maeda Y., Makii H., Matsuta K., Mihara M., Miura M., Shima T., Shimizu H., Tang R., Dinh Trong T., Yamaguchi H., Yang L.
EPJ Web of Conferences 184 2018年6月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：EPJ Web of Conferences
© The Authors, published by EDP Sciences, 2018. Our research goal is to measure the7Be(d, p) reaction to shed light on the7Li problem in the Big-Bang Nucleosynthesis. We are developing an unstable 7Be target for a high-resolution measurement of the7Be(d, p)8Be reaction. We plan to compare two methods to producethe7Be target: (1) Activation method, and (2) Implantation method. We performed an activation methodexperiment at the Van de Graaff at Osaka University, and obtained the cross-section data. A second experiment to obtain more accurate data will take place at the Tandem Electrostatic Accelerator, Kobe University. We have also made a7Be target with implantation method at CRIB, Center for Nuclear Study, Univer-sity of Tokyo. An experiment to measure the (d, p) reaction with the implanted target is scheduled for 2018 at Japan Atomic Energy Agency, tandem facility.
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Chebotaryov S., Sakaguchi S., Uesaka T., Akieda T., Ando Y., Assie M., Beaumel D., Chiga N., Dozono M., Galindo-Uribarri A., Heffron B., Hirayama A., Isobe T., Kaki K., Kawase S., Kim W., Kobayashi T., Kon H., Kondo Y., Kubota Y., Leblond S., Lee H., Lokotko T., Maeda Y., Matsuda Y., Miki K., Milman E., Motobayashi T., Mukai T., Nakai S., Nakamura T., Ni A., Noro T., Ota S., Otsu H., Ozaki T., Panin V., Park S., Saito A., Sakai H., Sasano M., Sato H., Sekiguchi K., Shimizu Y., Stefan I., Stuhl L., Takaki M., Taniue K., Tateishi K., Terashima S., Togano Y., Tomai T., Wada Y., Wakasa T., Wakui T., Watanabe A., Yamada H., Yang Z., Yasuda M., Yasuda J., Yoneda K., Zenihiro J.
Progress of Theoretical and Experimental Physics 2018 ( 5 ) 2018年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
© The Author(s) 2018. Differential cross sections of p-6He elastic scattering were measured in inverse kinematics at an incident energy of 200 A MeV, covering the high momentum transfer region of 1.7-2.7 -1. The sensitivity of the elastic scattering at low and high momentum transfers to the density distribution was investigated quantitatively using relativistic impulse approximation calculations. In the high momentum transfer region, where the present data were taken, the differential cross section has an order of magnitude higher sensitivity to the inner part of the 6He density relative to the peripheral part (15:1). This feature makes the obtained data valuable for the deduction of the inner part of the 6He density. The data were compared to a set of calculations assuming different proton and neutron density profiles of 6He. The data are well reproduced by the calculation assuming almost the same profiles of proton and neutron densities around the center of 6He, and a proton profile reproducing the known point-proton radius of 1.94 fm. This finding is consistent with the assumption that the 6He nucleus consists of a rigid α-like core with a two-neutron halo.
DOI： 10.1093/ptep/pty048
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Noji S., Sakai H., Aoi N., Baba H., Berg G., Doornenbal P., Dozono M., Fukuda N., Inabe N., Kameda D., Kawabata T., Kawase S., Kikuchi Y., Kisamori K., Kubo T., Maeda Y., Matsubara H., Michimasa S., Miki K., Miya H., Miyasako H., Sakaguchi S., Sasamoto Y., Shimoura S., Takaki M., Takeda H., Takeuchi S., Tokieda H., Ohnishi T., Ota S., Uesaka T., Wang H., Yako K., Yanagisawa Y., Yokota N., Yoshida K., Zegers R.
Physical Review Letters 120 ( 17 ) 2018年4月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
© 2018 American Physical Society. The (N12, C12) charge-exchange reaction at 175 MeV/u was developed as a novel probe for studying the isovector spin giant monopole resonance (IVSMR), whose properties are important for better understanding the bulk properties of nuclei and asymmetric nuclear matter. This probe, now available through the production of N12 as a secondary rare-isotope beam, is exothermic, is strongly absorbed at the surface of the target nucleus, and provides selectivity for spin-transfer excitations. All three properties enhance the excitation of the IVSMR compared to other, primarily light-ion, probes, which have been used to study the IVSMR thus far. The Zr90(N12,C12) reaction was measured and the excitation energy spectra up to about 70 MeV for both the spin-transfer and non-spin-transfer channels were deduced separately by tagging the decay by γ emission from the C12 ejectile. Besides the well-known Gamow-Teller and isobaric analog transitions, a clear signature of the IVSMR was identified. By comparing with the results from light-ion reactions on the same target nucleus and theoretical predictions, the suitability of this new probe for studying the IVSMR was confirmed.
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Exclusive quasi-free proton knockout from oxygen isotopes at intermediate energies 査読あり
Kawase S., Uesaka T., Tang T.L., Beaumel D., Dozono M., Fukunaga T., Fujii T., Fukuda N., Galindo-Uribarri A., Hwang S., Inabe N., Kawabata T., Kawahara T., Kim W., Kisamori K., Kobayashi M., Kubo T., Kubota Y., Kusaka K., Lee C., Maeda Y., Matsubara H., Michimasa S., Miya H., Noro T., Nozawa Y., Obertelli A., Ogata K., Ota S., Padilla-Rodal E., Sakaguchi S., Sakai H., Sasano M., Shimoura S., Stepanyan S., Suzuki H., Suzuki T., Takaki M., Takeda H., Tamii A., Tokieda H., Wakasa T., Wakui T., Yako K., Yasuda J., Yanagisawa Y., Yokoyama R., Yoshida K., Yoshida K., Zenihiro J.
Progress of Theoretical and Experimental Physics 2018 ( 2 ) 2018年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
© The Author(s) 2018. The dependence of the single-particle strength on the difference between proton and neutron separation energies is studied for oxygen isotopes in a wide range of isospins. The cross sections of the quasi-free (p, 2p) reaction on 14,16,18,22,24O were measured at intermediate energies. The measured cross sections are compared to predictions based on the distorted wave impulse approximation and shell-model psd valence-space spectroscopic factors. The reduction factors, which are the ratio of the experimental cross sections to the theoretical predictions, show no apparent dependence on the proton–neutron separation energy difference. The result is compatible with the result of the (e, ep) reaction on stable targets and with the predictions of recent ab initio calculations.
DOI： 10.1093/ptep/pty011
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Systematic analysis of inelastic α scattering off self-conjugate A=4n nuclei 査読あり
Adachi S., Kawabata T., Minomo K., Kadoya T., Yokota N., Akimune H., Baba T., Fujimura H., Fujiwara M., Funaki Y., Furuno T., Hashimoto T., Hatanaka K., Inaba K., Ishii Y., Itoh M., Iwamoto C., Kawase K., Maeda Y., Matsubara H., Matsuda Y., Matsuno H., Morimoto T., Morita H., Murata M., Nanamura T., Ou I., Sakaguchi S., Sasamoto Y., Sawada R., Shimizu Y., Suda K., Tamii A., Tameshige Y., Tsumura M., Uchida M., Uesaka T., Yoshida H., Yoshida S.
Physical Review C 97 ( 1 ) 2018年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
© 2018 American Physical Society. We systematically measured the differential cross sections of inelastic α scattering off self-conjugate A=4n nuclei at two incident energies Eα=130MeV and 386MeV at Research Center for Nuclear Physics, Osaka University. The measured cross sections were analyzed by the distorted-wave Born-approximation (DWBA) calculation using the single-folding potentials, which are obtained by folding macroscopic transition densities with the phenomenological αN interaction. The DWBA calculation with the density-dependent αN interaction systematically overestimates the cross sections for the ΔL=0 transitions. However, the DWBA calculation using the density-independent αN interaction reasonably well describes all the transitions with ΔL=0-4. We examined uncertainties in the present DWBA calculation stemming from the macroscopic transition densities, distorting potentials, phenomenological αN interaction, and coupled channel effects in C12. It was found that the DWBA calculation is not sensitive to details of the transition densities nor the distorting potentials, and the phenomenological density-independent αN interaction gives reasonable results. The coupled-channel effects are negligibly small for the 21+ and 31- states in C12, but not for the 02+ state. However, the DWBA calculation using the density-independent interaction at Eα=386MeV is still reasonable even for the 02+ state. We concluded that the macroscopic DWBA calculations using the density-independent interaction are reliably applicable to the analysis of inelastic α scattering at Eα∼100MeV/u.
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Okazaki K., Hayashida K., Nakajima H., Shomura R., Yoneyama T., Matsumoto H., Tsunemi H., Mori K., Tsujimoto M., Maeda Y., Ebisawa K.
Proceedings of SPIE - The International Society for Optical Engineering 10709 2018年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Proceedings of SPIE - The International Society for Optical Engineering
© 2018 SPIE. X-ray Imaging Spectrometers (XIS) are the X-ray CCD cameras onboard Suzaku. They were operated in orbit from 2005 to 2015 and produced lots of findings with their good energy resolution and low non X-rat background. Precise calibration including the 10 eV accuracy in the energy scale reinforced them. Nevertheless, there has been a unresolved calibration issue in the spectral response around the Si-K edge (1.839 keV) appearing as systematic residuals up to 10%. The residual is negative peaking at 1.85 keV in the front illuminated (FI) sensors and positive peaking at 1.8 keV in the back illuminated (BI) sensor for X-ray sources dominated by continuum X-ray emission. Various attempts to eliminate these residuals by changing response parameters or quantum efficiency models have been insufficient. In this paper, we revisit this problem by focusing on the relation between incident X-ray energy and pulse height. We introduce a jump in that relation at the Si-K edge by modifying the, and optimize its value so as to minimize the residuals in the fit of the X-ray spectra for the black hole binary LMC X-3, a source dominated by continuum emission. We find the introduction of a jump significantly reduces the residuals. The optimized jump values are +4.2 channel, +4.0 channel, and -3.1 channel, corresponding to 15.3 eV, -11.3 eV, and 14.6 eV, for XIS0, XIS3 (FI), and XIS1 (BI), respectively. The direction of the jump is opposite for the FI and for the BI. We revise the response matrices generator so as to include the jump for each XIS sensor, and apply it to the X-ray spectra of the Perseus cluster of galaxies which has various emission lines in the spectra, and the blazar PKS2155-304 which was observed various epoch in the Suzakuoperation. We confirm the residuals are significantly reduced for these sources, too. We finally suggest the jump at Si-K edge in the energy and pulse height relation is qualitatively explained, if some of charges are lost in course of charger collection to the electrode of the CCD in the depletion later, and its amount is large for larger travel length in the depletion layer. If this explanation is correct, the Si-K edge problem and its solution presented in this paper is not specific only for the SuzakuXIS but also for other X-ray CCDs.
DOI： 10.1117/12.2314259
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Sun X., Wang H., Otsu H., Sakurai H., Ahn D.S., Aikawa M., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Koyama S., Kubo T., Kubono S., Lorusso G., Maeda Y., Makinaga A., Momiyama S., Nakano K., Niikura M., Shiga Y., Söderström P.A., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Watanabe Y., Watanabe Y., Yamasaki H., Yoshida K.
Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018 153 - 157 2018年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018
© The Authors, 2019. Published by CERN. The isotopic distribution of the production cross sections of 136Xe on proton and carbon at 168 MeV/u were obtained in inverse kinematics technique at RIKEN Radioactive Isotope Beam Factory. The target dependence at 168 MeV/u was investigated systematically. The cross sections measured in the present work are compared with the previous results obtained at different reaction energies to investigate the energy dependence for the reactions on proton. The experimental results on proton are compared with the PHITS calculations including both the cascade and evaporation processes for the model benchmarking.
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Watanabe Y., Suwa J., Nakano K., Kawase S., Wang H., Otsu H., Sakurai H., Ahn D.S., Aikawa M., Ando T., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Kin T., Kondo Y., Koyama S., Kubono S., Maeda Y., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakamura T., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Soderstrom P.A., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Togano Y., Tsubota J., Uesaka M., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018 139 - 143 2018年
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Proceedings of the 15th International Conference on Nuclear Reaction Mechanisms, NRM 2018
© The Authors, 2019. Published by CERN. Production cross sections of residual nuclei via proton- and deuteron-induced spallation reactions on 91,92Y, 92,93Zr, and 93,94Nb at projectile energies around 100 MeV/nucleon were measured in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Noticeable jumps in the measured cross sections of isotone production appear between the neutron numbers N=51 and 50 for target nuclei with the initial neutron number Ninit=53 (92Y, 93Zr, and 94Nb), while such jump is not clearly seen for target nuclei with Ninit=52 (91Y, 92Zr, and 93Nb). The measured isotopic production cross sections are compared with PHITS calculations considering both the intranuclear cascade and evaporation processes in order to benchmark the reaction models.
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Complete set of deuteron analyzing powers from d - p elastic scattering at 190 MeV/nucleon 査読あり
Sekiguchi K., Witała H., Akieda T., Eto D., Kon H., Wada Y., Watanabe A., Chebotaryov S., Dozono M., Golak J., Kamada H., Kawakami S., Kubota Y., Maeda Y., Miki K., Milman E., Ohkura A., Sakai H., Sakaguchi S., Sakamoto N., Sasano M., Shindo Y., Skibiński R., Suzuki H., Tabata M., Uesaka T., Wakasa T., Yako K., Yamamoto T., Yanagisawa Y., Yasuda J.
Physical Review C 96 ( 6 ) 2017年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
© 2017 American Physical Society. All deuteron analyzing powers for elastic deuteron-proton (dp) scattering have been measured with a polarized deuteron beam at 186.6 MeV/nucleon. They are compared with results of three-nucleon Faddeev calculations based on the standard, high-precision nucleon-nucleon (NN) potentials alone or combined with commonly used three-nucleon force (3NF) models such as the Tucson-Melbourne '99 or the Urbana IX. Predicted 3NF effects localized at backward angles are supported only partially by the data. The data are also compared to predictions based on locally regularized chiral NN potentials. An estimation of theoretical truncation uncertainties in the consecutive orders of chiral expansion suggests that the observed discrepancies between this modern theory and the data could probably be explained by including chiral 3NF's in future calculations. A systematic comparison to the deuteron analyzing power data previously taken at incident energies from 70 to 294 MeV/nucleon clearly shows that not only the cross section but also the analyzing powers reveal growing 3NF effects when the three-nucleon system energy is increased.
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Test of the Brink-Axel Hypothesis for the Pygmy Dipole Resonance 査読あり
Martin D., Von Neumann-Cosel P., Tamii A., Aoi N., Bassauer S., Bertulani C., Carter J., Donaldson L., Fujita H., Fujita Y., Hashimoto T., Hatanaka K., Ito T., Krugmann A., Liu B., Maeda Y., Miki K., Neveling R., Pietralla N., Poltoratska I., Ponomarev V., Richter A., Shima T., Yamamoto T., Zweidinger M.
Physical Review Letters 119 ( 18 ) 2017年11月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
© 2017 American Physical Society. The gamma strength function and level density of 1- states in Mo96 have been extracted from a high-resolution study of the (p→, p→′) reaction at 295 MeV and extreme forward angles. By comparison with compound nucleus γ decay experiments, this allows a test of the generalized Brink-Axel hypothesis in the energy region of the pygmy dipole resonance. The Brink-Axel hypothesis is commonly assumed in astrophysical reaction network calculations and states that the gamma strength function in nuclei is independent of the structure of the initial and final state. The present results validate the Brink-Axel hypothesis for Mo96 and provide independent confirmation of the methods used to separate gamma strength function and level density in γ decay experiments.
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Kawase S., Watanabe Y., Wang H., Otsu H., Sakurai H., Takeuchi S., Togano Y., Nakamura T., Maeda Y., Ahn D., Aikawa M., Araki S., Chen S., Chiga N., Doornenbal P., FGBRuda N., Ichihara T., Isobe T., Kawakami S., Kin T., Kondo Y., Koyama S., Kubo T., Kubono S., Kurokawa M., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakano K., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., SuzGBRi H., Takeda H., Taniuchi R., Tsubota J., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
EPJ Web of Conferences 146 2017年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：EPJ Web of Conferences
© The Authors, published by EDP Sciences, 2017. Isotopic production cross sections in the proton-and deuteron-induced spallation reactions on 93Zr at an energy of 105 MeV/u were measured in inverse kinematics conditions for the development of realistic nuclear transmutation processes for long-lived fission products (LLFPs) with neutron and light-ion beams. The experimental results were compared to the PHITS calculations describing the intra-nuclear cascade and evaporation processes. Although an overall agreement was obtained, a large overestimation of the production cross sections for the removal of a few nucleons was seen. A clear shell effect associated with the neutron magic number N = 50 was observed in the measured isotopic production yields of Zr and Y isotopes, which can be reproduced reasonably by the PHITS calculation.
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Nakano K., Watanabe Y., Kawase S., Wang H., Otsu H., Sakurai H., Takeuchi S., Togano Y., Nakamura T., Maeda Y., Ahn D., Aikawa M., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Ichihara T., Isobe T., Kawakami S., Kin T., Kondo Y., Koyama S., Kubo T., Kubono S., Kurokawa M., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., Suzuki H., Takeda H., Taniuchi R., Tsubota J., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
EPJ Web of Conferences 146 2017年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：EPJ Web of Conferences
© The Authors, published by EDP Sciences, 2017. Isotopic production cross sections were measured for proton- and deuteron-induced reactions on93Nb by means of the inverse kinematics method at RIKEN Radioactive Isotope Beam Factory. The measured production cross sections of residual nuclei in the reaction93Nb + p at 113 MeV/u were compared with previous data measured by the conventional activation method in the proton energy range between 46 and 249 MeV. The present inverse kinematics data of four reaction products (90Mo,90Nb,88Y, and86Y) were in good agreement with the data of activation measurement. Also, the model calculations with PHITS describing the intra-nuclear cascade and evaporation processes generally well reproduced the measured isotopic production cross sections.
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Wang H., Otsu H., Sakurai H., Ahn D., Aikawa M., Ando T., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Kawase S., Kin T., Kondo Y., Koyama S., Kubono S., Maeda Y., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakamura T., Nakano K., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Togano Y., Tsubota J., Uesaka M., Watanabe Y., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
EPJ Web of Conferences 146 2017年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：EPJ Web of Conferences
© The Authors, published by EDP Sciences, 2017. Spallation reactions for the long-lived fission products137Cs,90Sr and107Pd have been studied for the purpose of nuclear waste transmutation. The cross sections on the proton- and deuteron-induced spallation were obtained in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Both the target and energy dependences of cross sections have been investigated systematically. and the cross-section differences between the proton and deuteron are found to be larger for lighter fragments. The experimental data are compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intra-nuclear cascade and evaporation processes.
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Cross sections and analyzing powers for (p - ,np) reactions of H 2, Li 6, and C 12 at 296 MeV 査読あり
Wakasa T., Yasuda J., Dozono M., Fukunaga T., Gotanda S., Hatanaka K., Ishibashi K., Kanaya Y., Kimura S., Maeda Y., Maeda Y., Nishio Y., Noro T., Nozoe T., Ohnaka K., Sakaguchi S., Sakemi Y., Sekiguchi K., Taguchi T., Wada Y.
Physical Review C 96 ( 1 ) 014604 2017年7月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
© 2017 American Physical Society. We report measurements of cross sections and analyzing powers for nucleon-knockout (pnp) reactions of H2, Li6, and C12 at 296 MeV using the RCNP NPOL3 neutron detector and large acceptance spectrometer. The 1s and 1p knockout reactions were successfully separated with a separation-energy resolution of approximately 6 MeV. The resulting data were compared with plane-wave and distorted-wave impulse approximation calculations employing the nucleon-nucleon t matrix in free space. No significant differences were identified in the case of the present analyzing power data, in contrast to the significant reductions observed in (p2p) values. The conventional Pauli blocking and nuclear binding effects with the g matrix and the relativistic effect of nucleon mass reduction in the nuclei are also discussed.
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Search for the rare γ-decay mode in <sup>12</sup>C 査読あり
Tsumura M., Kawabata T., Furuno T., Koshikawa A., Murata M., Morimoto T., Adachi S., Tamii A., Hatanaka K., Ito T., Zenihiro J., Kubono S., Itoh M., Matsuda Y., Maeda Y., Sakaguchi S., Akimune H., Fujimura H., Ou I., Hashimoto T., Iwamoto C.
Journal of Physics: Conference Series 863 ( 1 ) 2017年7月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Journal of Physics: Conference Series
© Published under licence by IOP Publishing Ltd. Excited states in 12 C nuclei play a very important role in the nucleosynthesis in the universe. 12 C nuclei are synthesized by the triple α reaction. Normally the triple α process proceeds via the state (Hoyle states) at E x = 7.65 MeV in 12 C. However, at high temperature T > 10 9 , the highly excited 3α resonance states such as the state at E x = 9.64 MeV might play a part of the triple α reaction. Unfortunately, the γ-decay probability of the state has not been determined, therefore we planned to measure 1 H( 12 C, 12 Cp) reaction without measuring γ-rays. The test experiment using the solid hydrogen target and GAGG(Gd 3 Al 2 Ga 3 O 12 ) was recently carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in this paper.
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Low-lying level structure of Cu 56 and its implications for the rp process 査読あり
Ong W., Langer C., Montes F., Aprahamian A., Bardayan D., Bazin D., Brown B., Browne J., Crawford H., Cyburt R., Deleeuw E., Domingo-Pardo C., Gade A., George S., Hosmer P., Keek L., Kontos A., Lee I., Lemasson A., Lunderberg E., Maeda Y., Matos M., Meisel Z., Noji S., Nunes F., Nystrom A., Perdikakis G., Pereira J., Quinn S., Recchia F., Schatz H., Scott M., Siegl K., Simon A., Smith M., Spyrou A., Stevens J., Stroberg S., Weisshaar D., Wheeler J., Wimmer K., Zegers R.
Physical Review C 95 ( 5 ) 2017年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C
© 2017 American Physical Society. The low-lying energy levels of proton-rich Cu56 have been extracted using in-beam γ-ray spectroscopy with the state-of-the-art γ-ray tracking array GRETINA in conjunction with the S800 spectrograph at the National Superconducting Cyclotron Laboratory at Michigan State University. Excited states in Cu56 serve as resonances in the Ni55(p,γ)Cu56 reaction, which is a part of the rp process in type-I x-ray bursts. To resolve existing ambiguities in the reaction Q value, a more localized isobaric multiplet mass equation (IMME) fit is used, resulting in Q=639±82 keV. We derive the first experimentally constrained thermonuclear reaction rate for Ni55(p,γ)Cu56. We find that, with this new rate, the rp process may bypass the Ni56 waiting point via the Ni55(p,γ) reaction for typical x-ray burst conditions with a branching of up to ∼40%. We also identify additional nuclear physics uncertainties that need to be addressed before drawing final conclusions about the rp-process reaction flow in the Ni56 region.
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Sekiguchi K., Wada Y., Watanabe A., Eto D., Akieda T., Kon H., Miki K., Sakamoto N., Sakai H., Sasano M., Shimizu Y., Suzuki H., Uesaka T., Yanagisawa Y., Dozono M., Kawase S., Kubota Y., Lee C., Yako K., Maeda Y., Kawakami S., Yamamoto T., Sakaguchi S., Wakasa T., Yasuda J., Ohkura A., Shindo Y., Tabata M., Milman E., Chebotaryov S., Okamura H., Tang T.
Few-Body Systems 58 ( 2 ) 2017年3月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
© 2017, Springer-Verlag Wien. We have measured a complete set of deuteron analyzing powers in deuteron–proton elastic scattering at 190, 250, and 294 MeV/nucleon. The obtained data are compared with the Faddeev calculations based on the modern nucleon–nucleon forces together with the Tucson-Melbourne’99, and UrbanaIX three nucleon forces. The data are also presented with the calculations based on the N4LO NN potentials of the chiral effective field theory.
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Spallation reaction study for the long-lived fission product <sup>107</sup>Pd 査読あり
Wang H., Otsu H., Sakurai H., Ahn D., Aikawa M., Ando T., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Kawase S., Kin T., Kondo Y., Koyama S., Kubono S., Maeda Y., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakamura T., Nakano K., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Togano Y., Tsubota J., Uesaka M., Watanabe Y., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
Progress of Theoretical and Experimental Physics 2017 ( 2 ) 2017年2月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
© The Author(s) 2017. Spallation reactions for the long-lived fission product 107Pd have been studied for the purpose of nuclear waste transmutation. The cross sections on the proton- and deuteron-induced spallation were obtained at 196 and 118 MeV/nucleon in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Both the target and energy dependences of cross sections have been investigated systematically. It was found that the proton-induced cross sections at 196 MeV/nucleon are close to those for deuteron obtained at 118 MeV/nucleon for the light-mass products. The experimental data are compared with the SPACS semi-empirical parameterization and the PHITS calculations including both the intranuclear cascade and evaporation processes. Our data give a design goal of proton/deuteron flux for the transmutation of 107 Pd using the spallation reaction. In addition, it is found that the spallation reaction at 118 MeV/nucleon may have an advantage over the 107 Pd transmutation because of the low production of other long-lived radioactive isotopes.
DOI： 10.1093/ptep/ptw187
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Kawase S., Nakano K., Watanabe Y., Wang H., Otsu H., Sakurai H., Ahn D., Aikawa M., Ando T., Araki S., Chen S., Chiga N., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Kin T., Kondo Y., Koyama S., Kubono S., Maeda Y., Makinaga A., Matsushita M., Matsuzaki T., Michimasa S., Momiyama S., Nagamine S., Nakamura T., Niikura M., Ozaki T., Saito A., Saito T., Shiga Y., Shikata M., Shimizu Y., Shimoura S., Sumikama T., Söderström P., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Togano Y., Tsubota J., Uesaka M., Watanabe Y., Wimmer K., Yamamoto T., Yoshida K.
Progress of Theoretical and Experimental Physics 2017 ( 9 ) 2017年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
© The Author(s) 2017. Spallation reactions for the long-lived fission product93Zr have been studied in order to provide basic data necessary for nuclear waste transmutation. Isotopic-production cross sections via proton- and deuteron-induced spallation reactions on93Zr at 105 MeV/nucleon were measured in inverse kinematics at the RIKEN Radioactive Isotope Beam Factory. Remarkable jumps in isotopic production originating from the neutron magic number N = 50 were observed in Zr and Y isotopes. The experimental results were compared to the PHITS calculations considering both the intranuclear cascade and evaporation processes, and the calculations greatly overestimated the measured production yield, corresponding to few-nucleon-removal reactions. The present data suggest that the spallation reaction is a potential candidate for the treatment of93Zr in spent nuclear fuel.
DOI： 10.1093/ptep/ptx110
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Wang H., Otsu H., Sakurai H., Ahn D., Chiga N., Doornenbal P., Fukuda N., Isobe T., Kubo T., Kubono S., Lorusso G., Söderström P., Suzuki H., Takeda H., Watanabe Y., Yoshida K., Matsuzaki T., Shimizu Y., Sumikama T., Uesaka M., Kawase S., Nakano K., Watanabe Y., Araki S., Kin T., Takeuchi S., Togano Y., Nakamura T., Kondo Y., Ozaki T., Saito A., Tsubota J., Aikawa M., Makinaga A., Ando T., Koyama S., Momiyama S., Nagamine S., Niikura M., Saito T., Taniuchi R., Wimmer K., Kawakami S., Maeda Y., Yamamoto T., Shiga Y., Matsushita M., Michimasa S., Shimoura S.
Energy Procedia 131 127 - 132 2017年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Energy Procedia
© 2017 The Authors. Published by Elsevier Ltd. Spallation reaction study has been performed for the long-lived fission products137Cs,90Sr and107Pd. Isotopic cross sections on proton and deuteron were obtained by using the inverse kinematics technique at the RIKEN Radioactive Isotope Beam Factory. It was found that the deuteron-induced cross sections are larger than the proton-induced ones for the light-mass products. The experimental data were compared with the SPACS semi-empirical parameterization and a theoretical calculation including both the intra-nuclear cascade and evaporation models by the PHITS transport code. It was found that the spallation reaction could be a promising mechanism for the transmutation of137Cs and90Sr due to the large total cross section.
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アルファ非弾性散乱を用いた <sup>13</sup>C におけるクラスター状態の探索
稲葉 健斗, 川畑 貴裕, 笹本 良子, 上坂 友洋, 清水 陽平, 須田 健嗣, 前田 幸重, 坂口 聡志, 畑中 吉治, 藤原 守, 民井 淳, 吉田 英智, 中西 康介, 川瀬 啓悟, 為重 雄司, 松原 礼明, 伊藤 正俊, 内田 誠, 伊藤 圭介
日本物理学会講演概要集 72 ( 0 ) 394 - 394 2017年
記述言語：日本語 掲載種別：研究論文（研究会，シンポジウム資料等） 出版者・発行元：一般社団法人 日本物理学会
我々は大阪大学核物理研究センター(RCNP) で、400 MeV のアルファ粒子を入射ビームとして西実験室にある磁気分析器大雷電(Grand Raiden) を用いて^13^Cのアルファ非弾性散乱の断面積測定を行い、^13^Cにおけるクラスター状態の探索を行った。^13^Cには、^12^Cの0_2_^+^状態に中性子を付加した3α+n配位をもつクラスター状態が発現すると期待される。これらの状態は、^12^Cの3αクラスター状態と同様に強い単極子遷移によって励起されると期待されるため、本研究では、^13^Cの単極子遷移強度分布を測定した。本講演ではその解析結果について報告する。
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Wang H., Otsu H., Sakurai H., Ahn D., Aikawa M., Doornenbal P., Fukuda N., Isobe T., Kawakami S., Koyama S., Kubo T., Kubono S., Lorusso G., Maeda Y., Makinaga A., Momiyama S., Nakano K., Niikura M., Shiga Y., Söderström P., Suzuki H., Takeda H., Takeuchi S., Taniuchi R., Watanabe Y., Watanabe Y., Yamasaki H., Yoshida K.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 754 104 - 108 2016年3月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
© 2016 The Authors. We have studied spallation reactions for the fission products 137 Cs and 90 Sr for the purpose of nuclear waste transmutation. The spallation cross sections on the proton and deuteron were obtained in inverse kinematics for the first time using secondary beams of 137 Cs and 90 Sr at 185 MeV/nucleon at the RIKEN Radioactive Isotope Beam Factory. The target dependence has been investigated systematically, and the cross-section differences between the proton and deuteron are found to be larger for lighter spallation products. The experimental data are compared with the PHITS calculation, which includes cascade and evaporation processes. Our results suggest that both proton- and deuteron-induced spallation reactions are promising mechanisms for the transmutation of radioactive fission products.
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Candidate Resonant Tetraneutron State Populated by the He 4 (He 8, Be 8) Reaction
Kisamori K., Shimoura S., Miya H., Michimasa S., Ota S., Assie M., Baba H., Baba T., Beaumel D., Dozono M., Fujii T., Fukuda N., Go S., Hammache F., Ideguchi E., Inabe N., Itoh M., Kameda D., Kawase S., Kawabata T., Kobayashi M., Kondo Y., Kubo T., Kubota Y., Kurata-Nishimura M., Lee C., Maeda Y., Matsubara H., Miki K., Nishi T., Noji S., Sakaguchi S., Sakai H., Sasamoto Y., Sasano M., Sato H., Shimizu Y., Stolz A., Suzuki H., Takaki M., Takeda H., Takeuchi S., Tamii A., Tang L., Tokieda H., Tsumura M., Uesaka T., Yako K., Yanagisawa Y., Yokoyama R., Yoshida K.
Physical Review Letters 116 ( 5 ) 2016年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
© 2016 American Physical Society. A candidate resonant tetraneutron state is found in the missing-mass spectrum obtained in the double-charge-exchange reaction He4(He8,Be8) at 186 MeV/u. The energy of the state is 0.83±0.65(stat)±1.25(syst) MeV above the threshold of four-neutron decay with a significance level of 4.9σ. Utilizing the large positive Q value of the (He8,Be8) reaction, an almost recoilless condition of the four-neutron system was achieved so as to obtain a weakly interacting four-neutron system efficiently.
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53MeV <sup>93</sup>Nb(p,d)反応を用いた<sup>92</sup>Nbの励起エネルギー測定
谷上 幸星, 後藤 真太朗, 前田 幸重, 松田 達郎, 坂口 治隆, 山本 達也, 大江 星斗, 篠田 英哲
日本物理学会講演概要集 71 ( 0 ) 172 - 172 2016年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人 日本物理学会
大阪大学RCNPで、^93^Nb標的に53.3MeV陽子ビームを照射し、弾性散乱と(p,d)反応を測定する実験を行った。(p,d)反応測定でえられた運動量スペクトルから9〜11MeV付近の励起エネルギースペクトルを導出し、8つのピークエネルギーを得た。DWBA計算プログラムDWACK4を用いて、弾性散乱の微分散乱断面積から^93^Nb-陽子間の光学ポテンシャルを求め、(p,d)反応で得られた各励起エネルギーについてJ^π^を算出する。この結果について報告する。
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^<56>Fe, ^<93>Nb標的による53.3MeV 陽子ビームの弾性散乱と(p,d)反応の微分散乱断面積測定
谷上 幸星, 後藤 真太朗, 前田 幸重, 松田 達郎, 坂口 治隆, 山本 達也, 大江 星斗, 篠田 英哲
日本物理学会講演概要集 71 ( 0 ) 2016年
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アルファ非弾性散乱を用いた^<13>Cにおけるクラスター状態の探索
森本 貴博, 川畑 貴裕, 笹本 良子, 上坂 友洋, 清水 陽平, 須田 健嗣, 前田 幸重, 坂口 聡志, 畑中 吉治, 藤原 守, 民井 淳, 吉田 英智, 中西 康介, 川瀬 啓悟, 為重 雄司, 松原 礼明, 伊藤 正俊, 内田 誠, 伊藤 圭介
日本物理学会講演概要集 71 ( 0 ) 2016年
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Quasi-free proton knockout of ^<23,25>F
Tang T. L., Kawase S., Uesaka T., Beaumel D., Dozono M., Fujii T., Fukuda N., Fukunaga T., Galindo-Uribarri A., Hwang S. H., Inabe N., Kameda D., Kawahara T., Kim W. Y., Kisamori K., Kobayashi M., Kubo T., Kubota Y., Kusaka K., Lee C. S., Maeda Y., Matsubara H., Michimasa S., Miya H., Noro T., Obertelli A., Ota S., Padilla-Rodal E., Sakaguchi S., Sakai H., Sasano M., Shimoura S., Stepanyan S. S., Suzuki H., Takaki M., Takeda H., Tokieda H., Wakasa T., Wakui T., Yako K., Yanagisawa Y., Yasuda J., Yokoyama R., Yoshida K., Zenihiro J., SHARAQ collaboration
日本物理学会講演概要集 71 ( 0 ) 2016年
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Kurilkin A., Saito T., Ladygin V., Uesaka T., Hatano M., Isupov A., Janek M., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Vasiliev T., Yako K.
Physics of Atomic Nuclei 78 ( 8 ) 918 - 928 2015年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Atomic Nuclei
© 2015, Pleiades Publishing, Ltd. Data on the vector analyzing power A y and the tensor analyzing powers A yy , A xx , and A xz in the reaction d → d → 3 H p at the deuteron energy of 200 MeV are presented over a full angular range in the c.m. frame. The signs of the tensor analyzing powers for forward and backward scattering are found to be sensitive to the D/S wave ratio in 3 H and in the deuteron. High-precision experimental data are compared with the results of theoretical calculations performed on the basis of the multiple-scatteringmodel by using standard wave functions for the three-nucleon bound states and for the deuteron.
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Vector analyzing power Ay and tensor analyzing powers Ayy, Axx, andAxz in the reaction dd -> 3Hep at the energy of 200MeV 査読あり
Kurilkin, A.K., Saito, T., Ladygin, V.P., Uesaka, T., Hatano, M., Isupov, A.Y., Janek, M., Kato, H., Ladygina, N.B., Maeda, Y., Malakhov, A.I., Nishikawa, J., Ohnishi, T., Okamura, H., Reznikov, S.G., Sakai, H., Sakamoto, N., Sakoda, S., Satou, Y., Sekiguchi, K., Suda, K., Tamii, A., Uchigashima, N., Vasiliev, T.A., Yako, K.
Physics of Atomic Nuclei 78 ( 8 ) 918 - 928 2015年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Solid hydrogen target for missing mass spectroscopy in inverse kinematics
Matsuda Y., Tsumura M., Sakaguchi H., Terashima S., Zenihiro J., Kawabata T., Otsu H., Beaumel D., Tian Z., Maeda Y., Gotanda S., Kawakami S., Aoi N., Yamamoto T.
Journal of Radioanalytical and Nuclear Chemistry 305 ( 3 ) 897 - 901 2015年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Radioanalytical and Nuclear Chemistry
© 2015, Akadémiai Kiadó, Budapest, Hungary. By using para-hydrogen and a mechanical press made of neodymium magnets, we have succeeded in making a 1-mm-thick and 30-mm-diameter solid hydrogen target (SHT), and have measured elastic scattering of protons with radioactive ion beams at 300 MeV/u. We also succeeded in making not only a 0.5-mm-thick and 10-mm-diameter SHT but also a 2-mm-thick and 30-mm-diameter SHT to study excited-state properties of nuclei via (p,p′) reactions, and quasi-free (p,pα) reactions at intermediate energies. The ortho–para converter and the simple mechanical press show possibilities for making SHTs which have various radii and thicknesses.
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Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei
Matsubara H., Tamii A., Nakada H., Adachi T., Carter J., Dozono M., Fujita H., Fujita K., Fujita Y., Hatanaka K., Horiuchi W., Itoh M., Kawabata T., Kuroita S., Maeda Y., Navrátil P., Von Neumann-Cosel P., Neveling R., Okamura H., Popescu L., Poltoratska I., Richter A., Rubio B., Sakaguchi H., Sakaguchi S., Sakemi Y., Sasamoto Y., Shimbara Y., Shimizu Y., Smit F., Suda K., Tameshige Y., Tokieda H., Yamada Y., Yosoi M., Zenihiro J.
Physical Review Letters 115 ( 10 ) 2015年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
© 2015 American Physical Society. Differential cross sections of isoscalar and isovector spin-M1 (0+→1+) transitions are measured using high-energy-resolution proton inelastic scattering at Ep=295MeV on Mg24, Si28, S32, and Ar36 at 0°-14°. The squared spin-M1 nuclear transition matrix elements are deduced from the measured differential cross sections by applying empirically determined unit cross sections based on the assumption of isospin symmetry. The ratios of the squared nuclear matrix elements accumulated up to Ex=16MeV compared to a shell-model prediction are 1.01(9) for isoscalar and 0.61(6) for isovector spin-M1 transitions, respectively. Thus, no quenching is observed for isoscalar spin-M1 transitions, while the matrix elements for isovector spin-M1 transitions are quenched by an amount comparable with the analogous Gamow-Teller transitions on those target nuclei.
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Nonquenched Isoscalar Spin- M1 Excitations in sd -Shell Nuclei 査読あり
Matsubara, H., Tamii, A., Nakada, H., Adachi, T., Carter, J., Dozono, M., Fujita, H., Fujita, K., Fujita, Y., Hatanaka, K., Horiuchi, W., Itoh, M., Kawabata, T., Kuroita, S., Maeda, Y., Navr_til, P., Von Neumann-Cosel, P., Neveling, R., Okamura, H., Popescu, L., Poltoratska, I., Richter, A., Rubio, B., Sakaguchi, H., Sakaguchi, S., Sakemi, Y., Sasamoto, Y., Shimbara, Y., Shimizu, Y., Smit, F.D., Suda, K., Tameshige, Y., Tokieda, H., Yamada, Y., Yosoi, M., Zenihiro, J.
Physical Review Letters 115 102501 2015年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Solid hydrogen target for missing mass spectroscopy in inverse kinematics 査読あり
Matsuda, Y., Tsumura, M., Sakaguchi, H., Terashima, S., Zenihiro, J., Kawabata, T., Otsu, H., Beaumel, D., Tian, Z., Maeda, Y., Gotanda, S., Kawakami, S., Aoi, N., Yamamoto, T.
Journal of Radioanalytical and Nuclear Chemistry 305 897 - 901 2015年3月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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28aSF-7 ^<90>Srとその近傍核種における荷電交換反応測定
川上 駿介, 前田 幸重, 王 赫, 櫻井 博義, 大津 秀暁, 磯部 忠明, 久保 敏幸, 久保野 茂, 志賀 慶明, 武内 聡, 福田 直樹, 吉田 光一, 渡邊 康, Lorusso G., Soderstrom P.-A., Doornenbal P., 安藤 孝志, 小林 信之, 小山 俊平, 谷内 稜, 新倉 潤, 松井 圭司, 宮崎 卓也, 籾山 悟至, 合川 正幸, 牧永 綾乃, 渡辺 幸信
日本物理学会講演概要集 70 ( 0 ) 2015年
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22aCD-2 Spectroscopy of 23F by (p,2p) quasi-free knockout experiment
Tang T. L., Kawase S., Uesaka T., Beaumel D., Dozono M., Fujii T., Fukuda N., Fukunaga T., Galindo-Uribarri A., Hwang S. H., Inabe N., Kameda D, Kawahara T., Kim W. Y., Kisamori K., Kobayashi M., Kubo T., Kubota Y., Kusaka K., Lee C. S., Maeda Y., Matsubara H., Michimasa S., Miya H., Noro T., Obertelli A., Ota S., Padilla-Rodal E., Sakaguchi S., Sakai H., Sasano M., Shimoura S., Stepanyan S. S., Suzuki H., Takaki M., Takeda H., Tokieda H., Wakasa T., Wakui T., Yako K., Yanagisawa Y., Yasuda J., Yokoyama R., Yoshida K., Zenihiro J., SHARAQ collaboration
日本物理学会講演概要集 70 ( 0 ) 2015年
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21aDE-10 逆運動学を用いた^<90>Sr近傍核の(n,p)荷電交換反応測定
川上 駿介, 大津 秀暁, 櫻井 博義, 王 赫, 渡辺 幸信, 相川 正幸, 前田 幸重, 福田 直樹, 稲辺 尚人, 久保 敏幸, 新倉 潤, 小林 信之, 谷内 稜, 松井 圭司, 宮崎 卓也, 籾山 悟至, 吉田 光一, 渡辺 裕, 深堀 智生, 牧永 綾乃, 武内 聡, 志賀 慶明, 久保野 茂, Soderstrom P.-A., 磯部 忠明, Lorusso G., Doornenbal P., 小山 俊平, Ando T.
日本物理学会講演概要集 70 ( 0 ) 2015年
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Feasibility study to search for the rare γ-decay mode in 12C 査読あり
Tsumura, M., Kawabata, T., Adachi, S., Baba, T., Furuno, T., Ishii, Y., Murata, M., Kobayashi, F., Kanada-En'Yo, Y., Tamii, A., Hashimoto, T., Hatanaka, K., Matsuda, Y., Miki, K., Iwamoto, C., Ito, T., Miura, M., Zenihiro, J., Kubono, S., Itoh, M., Ando, S., Maeda, Y., Sakaguchi, S., Akimune, H., Fujimura, H., Ou, I.
Journal of Physics: Conference Series 569 ( 1 ) 2014年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Missing monopole strength of the Hoyle state in the alpha inelastic scattering 査読あり
Kawabata, T., Kadoya, T., Yokota, N., Adachi, S., Baba, T., Furuno, T., Fujimura, H., Fujiwara, M., Hatanaka, K., Ishii, Y., Itoh, M., Ito, T., Maeda, Y., Matsuda, Y., Murata, M., Sato, T., Tamii, A., Tsumura, M., Watanabe, H., Zenihiro, J.
Journal of Physics: Conference Series 569 ( 1 ) 2014年12月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Maeda Y., Saito T., Miyasako H., Uesaka T., Ota S., Kawase S., Kikuchi T., Tokieda H., Kawabata T., Yako K., Wakasa T., Sakaguchi S., Chen R., Sakaguchi H., Shima T., Suzuki T., Tamii A.
Few-Body Systems 55 ( 8-10 ) 729 - 732 2014年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
The effects of three nucleon force (3NF) have been actively studied via the nucleon-deuteron (Nd) scattering states. The differential cross sections and the vector analyzing powers A y of the 2 H(p, n) inclusive breakup reaction at 170 MeV were measured for the study of 3NF effects in the intermediate energy region. The polarized proton beam of 170 MeV was injected to the deuterated polyethylene (CD 2 ) target and the energy of scattered neutrons were measured by using TOF method. The data were compared with the Faddeev calculations based on modern nucleon-nucleon (NN) forces with and without the 3NF. Concerning the differential cross sections, we can see large discrepancies between the data and the calculations in the region of scattered neutron energies are low, which is similar to the results of the 2 H(p, p) inclusive breakup reaction at 250 MeV. © 2014 Springer-Verlag Wien.
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Complete Set of Deuteron Analyzing Powers for dp Elastic Scattering at Intermediate Energies and Three Nucleon Forces 査読あり
Sekiguchi, K., Okamura, H., Wada, Y., Miyazaki, J., Taguchi, T., Gebauer, U., Dozono, M., Kawase, S., Kubota, Y., Lee, C.S., Maeda, Y., Mashiko, T., Miki, K., Sakaguchi, S., Sakai, H., Sakamoto, N., Sasano, M., Shimizu, Y., Takahashi, K., Tang, R., Uesaka, T., Wakasa, T., Yako, K.
Few-Body Systems 55 717 - 719 2014年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Measurement of the 2H(p, n) Breakup Reaction at 170 MeV and the Three-Nucleon Force Effects 査読あり
Maeda, Y., Saito, T., Miyasako, H., Uesaka, T., Ota, S., Kawase, S., Kikuchi, T., Tokieda, H., Kawabata, T., Yako, K., Wakasa, T., Sakaguchi, S., Chen, R., Sakaguchi, H., Shima, T., Suzuki, T., Tamii, A.
Few-Body Systems 55 729 - 732 2014年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Determining the rp -process flow through Ni 56: Resonances in Cu 57 (p,γ) Zn 58 identified with GRETINA 査読あり
Langer, C., Montes, F., Aprahamian, A., Bardayan, D.W., Bazin, D., Brown, B.A., Browne, J., Crawford, H., Cyburt, R.H., Domingo-Pardo, C., Gade, A., George, S., Hosmer, P., Keek, L., Kontos, A., Lee, I.-Y., Lemasson, A., Lunderberg, E., Maeda, Y., Matos, M., Meisel, Z., Noji, S., Nunes, F.M., Nystrom, A., Perdikakis, G., Pereira, J., Quinn, S.J., Recchia, F., Schatz, H., Scott, M., Siegl, K., Simon, A., Smith, M., Spyrou, A., Stevens, J., Stroberg, S.R., Weisshaar, D., Wheeler, J., Wimmer, K., Zegers, R.G.T.
Physical Review Letters 113 ( 3 ) 2014年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Complete set of deuteron analyzing powers for dp elastic scattering at 250-294 MeV/nucleon and the three-nucleon force 査読あり
Sekiguchi, K. and Wada, Y. and Miyazaki, J. and Wita\l{}a, H. and Dozono, M. and Gebauer, U. and Golak, J. and Kamada, H. and Kawase, S. and Kubota, Y. and Lee, C. S. and Maeda, Y. and Mashiko, T. and Miki, K. and Nogga, A. and Okamura, H. and Saito, T. and Sakai, H. and Sakaguchi, S. and Sakamoto, N. and Sasano, M. and Shimizu, Y. and Skibi\ifmmode \acute{n}\else \'{n}\fi{}ski, R. and Suzuki, H. and Taguchi, T. and Takahashi, K. and Tang, T. L. and Uesaka, T. and Wakasa, T. and Yako, K.
Physical Review C 89 ( 6 ) 64007 2014年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Measurement of astrophysically important excitation energies of <sup>58</sup>Zn with GRETINA
Langer C., Montes F., Aprahamian A., Bardayan D., Bazin D., Brown B., Browne J., Crawford H., Cyburt R., Domingo-Pardo C., Gade A., George S., Hosmer P., Keek L., Kontos A., Lee I., Lemasson A., Lunderberg E., Maeda Y., Matos M., Meisel Z., Noji S., Nystrom A., Perdikakis G., Pereira J., Quinn S., Recchia F., Schatz H., Scott M., Siegl K., Simon A., Smith M., Spyrou A., Stevens J., Stroberg R., Weisshaar D., Wheeler J., Wimmer K., Zegers R.
EPJ Web of Conferences 66 2014年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：EPJ Web of Conferences
The level structure of neutron-deficient 58 Zn has been extracted experimentally. This nucleus is important for the rapid proton-capture process. 58 Zn was produced by using a (d,n)-type transfer reaction on 57 Cu in inverse kinematics at beam energies of 75 MeV/u. Several γ-ray transitions have been identified. The experiment utilized the state-of-the-art GRETINA γ-ray energy tracking array in conjunction with the largeacceptance spectrometer S800 at NSCL. The excitation energies of the identified low-lying states in 58 Zn are important for constraining the 57 Cu(p,γ) 58 Zn reaction rate under X-ray burst conditions. © Owned by the authors, published by EDP Sciences, 2014.
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Measurement of astrophysically important excitation energies of 58Zn with GRETINA 査読あり
Langer, C., Montes, F., Aprahamian, A., Bardayan, D.W., Bazin, D., Brown, B.A., Browne, J., Crawford, H., Cyburt, R., Domingo-Pardo, C., Gade, A., George, S., Hosmer, P., Keek, L., Kontos, A., Lee, I.-Y., Lemasson, A., Lunderberg, E., Maeda, Y., Matos, M., Meisel, Z., Noji, S., Nystrom, A., Perdikakis, G., Pereira, J., Quinn, S., Recchia, F., Schatz, H., Scott, M., Siegl, K., Simon, A., Smith, M., Spyrou, A., Stevens, J., Stroberg, R., Weisshaar, D., Wheeler, J., Wimmer, K., Zegers, R.G.T.
EPJ Web of Conferences 66 2014年4月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Complete set of deuteron analyzing powers for dp elastic scattering at intermediate energies and three nucleon forces 査読あり
Sekiguchi, K., Okamura, H., Wada, Y., Miyazaki, J., Taguchi, T., Gebauer, U., Dozono, M., Kawase, S., Kubota, Y., Lee, C.S., Maeda, Y., Mashiko, T., Miki, K., Sakaguchi, S., Sakai, H., Sakamoto, N., Sasano, M., Shimizu, Y., Takahashi, K., Tang, R., Uesaka, T., Wakasa, T., Yako, K.
EPJ Web of Conferences 66 2014年4月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Investigation of the light nuclei spin structure from hadronic channels at NUCLOTRON
Kurilkin P., Dobrin I., Fimushkin V., Finogenov D., Genchev S., Gurchin Y., Ierusalimov A., Isupov A., Itoh K., Janek M., Karpechev E., Karachuk J., Khabarov S., Kawabata T., Khrenov A., Krasnov V., Kurepin A., Kurilkin A., Ladygin V., Ladygina N., Lipchinski D., Livanov A., Maeda Y., Malakhov A., Martinska G., Piyadin S., Popovichi J., Prokofichev A., Rapatsky V., Reshetin A., Reznikov S., Rukoyatkin P., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Skhomenko Y., Suda K., Syschenko V., Tarjányiová G., Terekhin A., Uesaka T., Urban J., Vasiliev T., Vnukov I., Zamiatin N., Zubarev E.
Proceedings of Science 2014年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Proceedings of Science
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. The wide experimental program of the DSS project devoted to the investigation of the spin structure of light nuclei using internal and extracted deuteron beam at Nuclotron(JINR, Dubna) is discussed. Recent data on the deuteron analyzing powers in d pelastic scattering obtained at Nuclotron demonstrate strong deviation from the relativistic multiple scattering model predictions at large scattering angle in the cms. The scheme of the deuteron beam polarimetry at Nuclotron at intermediate and low energies is discussed.
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Spin physics in few body systems at Nuclotron 査読あり
Ladygin, V.P., Uesaka, T., Glagolev, V.V., Gurchin, Y.V., Isupov, A.Y., Itoh, K., Janek, M., Karachuk, J.-T., Kawabata, T., Khrenov, A.N., Kiselev, A.S., Krasnov, V.A., Kurepin, A.B., Kurilkin, A.K., Kurilkin, P.K., Ladygina, N.B., Lipchinski, D., Maeda, Y., Malakhov, A.I., Martinska, G., Nedev, S., Piyadin, S.M., Popovichi, J., Rangelov, S., Reznikov, S.G., Rukoyatkin, P.A., Sakaguchi, S., Sakai, H., Sekiguchi, K., Shikhalev, M.A., Suda, K., Terekhin, A.A., Trpisova, B., Urban, J., Vasiliev, T.A., Vnukov, I.E., Witala, H.
Physics of Particles and Nuclei 45 ( 1 ) 327 - 329 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Complete set of deuteron analyzing powers for dp elastic scattering at intermediate energies 査読あり
Sekiguchi, K., Okamura, H., Wada, Y., Miyazaki, J., Taguchi, T., Gebauer, U., Dozono, M., Kawase, S., Kubota, Y., Lee, C.S., Maeda, Y., Mashiko, T., Miki, K., Sakaguchi, S., Sakai, H., Sakamoto, N., Sasano, M., Shimizu, Y., Takahashi, K., Tang, R., Uesaka, T., Wakasa, T., Yako, K.
Physics of Particles and Nuclei 45 ( 1 ) 190 - 192 2014年1月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Spin physics in few body systems at Nuclotron 査読あり
Ladygin V., Uesaka T., Glagolev V., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Krasnov V., Kurepin A., Kurilkin A., Kurilkin P., Ladygina N., Lipchinski D., Maeda Y., Malakhov A., Martinska G., Nedev S., Piyadin S., Popovichi J., Rangelov S., Reznikov S., Rukoyatkin P., Sakaguchi S., Sakai H., Sekiguchi K., Shikhalev M., Suda K., Terekhin A., Trpisova B., Urban J., Vasiliev T., Vnukov I., Witala H.
Physics of Particles and Nuclei 45 ( 1 ) 327 - 329 2014年1月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Particles and Nuclei
The review of the recent results on spin effects in few nucleon systems obtained at LHEP-JINR are presented. The data on the deuteron analyzing powers in different reactions in the wide energy range demonstrate the sensitivity to the spin structure of the light nuclei. The future plans on the studies with polarized deuterons from new polarized ion source at Nuclotron will be reported. © 2014 Pleiades Publishing, Ltd.
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Feasibility study to search for the rare γ-decay mode in <sup>12</sup>C
Tsumura M., Kawabata T., Adachi S., Baba T., Furuno T., Ishii Y., Murata M., Kobayashi F., Kanada-En'Yo Y., Tamii A., Hashimoto T., Hatanaka K., Matsuda Y., Miki K., Iwamoto C., Ito T., Miura M., Zenihiro J., Kubono S., Itoh M., Ando S., Maeda Y., Sakaguchi S., Akimune H., Fujimura H., Ou I.
Journal of Physics: Conference Series 569 ( 1 ) 2014年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics: Conference Series
© Published under licence by IOP Publishing Ltd. Excited states in 12 C nuclei play a very important role in the nucleosynthesis in the universe. 12 C nuclei are synthesized by the triple α reaction. Normally this process proceeds via the 0 + 2 state (Hoyle state) at Ex 7.65 MeV in 12 C, however, at high temperature T > 10 9 the highly excited 3α resonant states such as the 3 - 1 state at Ex 9.64 MeV and the 2 + 2 state at Ex 9.84 MeV play a part of the triple α reaction. Unfortunately, the γ-decay probability of the 3p state has not been determined, therefore we planned to determine the 7- decay probability using the inverse kinematic reaction 1 H( 12 C, 12 Cp) without measuring γ-rays. The test experiment was carried out at the cyclotron facility in RCNP. The results of the test experiment are reported in the present paper.
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28pTA-2 準弾性^AO(p,2p)反応による窒素同位体の陽子-空孔状態の核分光(28pTA 実験核物理領域,理論核物理領域合同,不安定核(II)(合同),実験核物理領域)
川瀬 頌一郎, 木佐森 慶一, 高木 基伸, 久保田 悠樹, 李 清秀, 横山 輪, 藤井 俊彦, 小林 幹, 笹野 匡紀, 銭廣 十三, 松原 礼明, 上坂 友洋, 堂園 昌伯, 酒井 英行, 久保 敏幸, 吉田 光一, 稲辺 尚人, 柳澤 善行, 竹田 浩之, 日下 健祐, 福田 直樹, 亀田 大輔, 下浦 享, 鈴木 宏, 河原 朋美, 涌井 崇志, 坂口 聡志, 野呂 哲夫, 若狭 智嗣, 安田 淳平, 福永 拓, 前田 幸重, Kim Wooyoung, 矢向 謙太郎, Hwang Sanghoon, Stepanyan Samvel, Obertelli Alexandre, Galindo-Uribarri Alfredo, Padilla-Rodal Elizabeth, 大田 晋輔, 道正 新一郎, 時枝 紘史, 宮 裕之, Leung Tang Tsz
日本物理学会講演概要集 69 ( 0 ) 2014年
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Proton radiation damage experiment on P-Channel CCD for an X-ray CCD camera onboard the ASTRO-H satellite 査読あり
K. Mori, Y. Nishioka, S. Ohura, T. Koura, Y. Maeda, et. Al.
Nuclear Instruments and Methods in Physics Research, Section A 731 160 - 165 2013年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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20aSC-1 発熱型荷電交換反応(^8He,^8Liγ)を用いた^4He核のスピン-アイソスピン応答の研究(不安定核(I)(合同),実験核物理領域,理論核物理領域合同,実験核物理領域)
宮 裕之, 下浦 享, 木佐森 慶一, 馬場 秀忠, 馬場 辰雄, 堂園 昌伯, 福田 直樹, 藤井 俊彦, 郷 慎太郎, 井手口 栄治, 稲辺 尚人, 伊藤 正俊, 亀田 大輔, 川畑 貴裕, 川瀬 頌一郎, 久保 敏幸, 久保田 悠樹, 小林 幹, 近藤 洋介, 李 清秀, 前田 幸重, 松原 礼明, 三木 謙二郎, 道正 新一郎, 西 隆博, 西村 美月, 大田 晋輔, 坂口 聡志, 酒井 英行, 笹野 匡紀, 佐藤 広海, 清水 陽平, 鈴木 宏, 高木 基伸, 竹田 浩之, 武内 聡, 民井 淳, 時枝 紘史, 津村 美保, 上坂 友洋, 柳沢 善行, 矢向 謙太郎, 横山 輪, 吉田 光一, Assie M., Beaumel D., Fariouz H., Stolz A.
日本物理学会講演概要集 68 ( 2 ) 2013年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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Wada Y., Sekiguchi K., Miyazaki J., Taguchi T., Dozono M., Gebauer U., Kawase S., Kubota Y., Lee C., Maeda Y., Mashiko T., Miki K., Sakaguchi S., Sakai H., Sakamoto N., Sasano M., Shimizu Y., Takahashi K., Tang R., Uesaka T., Wakasa T., Yako K.
Few-Body Systems 54 ( 7-10 ) 1335 - 1338 2013年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
We have measured all deuteron analyzing powers A y d , A yy , A xx , A xz for deuteron-proton elastic scattering at 294 MeV/nucleon in order to study the properties of three nucleon forces (3 NFs). Measurement was made at in an angular range of θ c.m. = 35.6°-163.0°. Obtained data were compared with Faddeev calculations with and without the 3 NFs. At θ c.m. ≲ 120° all the data have general agreement with the calculations, while the measured data at θ c.m. ≳ 120° are not explained by any theoretical calculations. These results were consistent with those at 250 MeV/nucleon. © 2013 Springer-Verlag Wien.
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Spectroscopic Measurement in <sup>9</sup>He and <sup>12</sup>Be
Matsubara H., Takaki M., Uesaka T., Shimoura S., Aoi N., Dozono M., Fujii T., Hatanaka K., Hashimoto T., Kawabata T., Kawase S., Kisamori K., Kikuch Y., Kubota Y., Lee C., Lee H., Maeda Y., Michimasa S., Miki K., Miya H., Noji S., Ota S., Sakaguchi S., Sasamoto Y., Suzuki T., Tang L., Takahisa K., Tokieda H., Tamii A., Yako K., Yasuda Y., Yokota N., Yokoyama R., Zenihiro J.
Few-Body Systems 54 ( 7-10 ) 1433 - 1436 2013年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
Spectroscopy for neutron-rich nuclei 9 He and 12 Be has been performed by means of heavy-ion double charge exchange (HIDCX) ( 18 O, 18 Ne) reaction on stable target nuclei 9 Be and 12 C, respectively. Several clear peaks in 12 Be at low excitation energy region even above neutron separation energy have been observed in one-shot measurement, whereas no prominent signals of 9 He have been observed owing to the small cross section. It is shown that the HIDCX reaction is a new powerful spectroscopic tool for study of unstable neutron-rich nuclei. © 2013 Springer-Verlag Wien.
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Study of the Three-Nucleon Force Effects in the <sup>2</sup>H(p, n) Breakup Reaction at 170 MeV
Maeda Y., Saito T., Miyasako H., Uesaka T., Ota S., Kawase S., Kikuchi T., Tokieda H., Kawabata T., Yako K., Wakasa T., Sakaguchi S., Chen R., Sakaguchi H., Shima T., Suzuki T., Tamii A.
Few-Body Systems 54 ( 7-10 ) 1311 - 1314 2013年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
For the study of three nucleon force (3NF) effects in the intermediate energy region, the differential cross sections and the vector analyzing power A y were measured for the 2 H(p, n) inclusive breakup reaction at 170 MeV. The polarized proton beam of 170 MeV was injected to the deuterated polyethylene (CD 2 ) target and the energy of scattered neutrons were deduce by TOF method. The data was compared with the results of the Faddeev calculations with and without 3NFs. Concerning about the differential cross sections, we can see large discrepancies between the data and the calculations in the region where the energies of scattered neutrons are low, which are similar to the results of the 2 H(p, p) inclusive breakup reaction at 250 MeV. © 2013 Springer-Verlag Wien.
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Spectroscopic Measurement in 9He and 12Be 査読あり
H. Matsubara, M. Takaki, T. Uesaka, S. Shimoura, Y. Maeda, et. Al.
Few-Body Systems 54 1433 - 1436 2013年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Measurement of all Deuteron Analyzing Powers for d ?+p Elastic Scattering at 294 MeV/Nucleon 査読あり
Y. Wada, K. Sekiguchi, J. Miyazaki, T. Taguchi, Y. Maeda, et. Al.
Few-Body Systems 54 1335 - 1338 2013年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Study of the Three-Nucleon Force Effects in the 2H(p, n) Breakup Reaction at 170 MeV 査読あり
Maeda Y., Saito T., Miyasako H., Uesaka T., Ota S., Kawase S., Kikuchi T., Tokieda H., Kawabata T., Yako K., Wakasa T., Sakaguchi S., Chen R., Sakaguchi H., Shima T., Suzuki T., Tamii A.
Few-Body Systems 54 1311 - 1314 2013年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Analyzing Power in Elastic Scattering of Polarized Protons from Neutron-rich Helium Isotopes
Sakaguchi S., Iseri Y., Uesaka T., Tanifuji M., Aoi N., Hiyama E., Ichikawa Y., Ishikawa S., Itoh K., Itoh M., Iwasaki H., Kawabata T., Kawahara T., Kuboki H., Maeda Y., Nakao T., Okamura H., Sakai H., Sasamoto Y., Sasano M., Satou Y., Sekiguchi K., Suda K., Suzuki D., Tamii A., Wakui T., Yako K., Yamaguchi M., Yamamoto Y.
Few-Body Systems 54 ( 7-10 ) 1393 - 1398 2013年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
The vector analyzing power has been measured for the elastic scattering of neutron-rich 6 He from polarized protons at 71 MeV/nucleon. Two approaches based on local one-body potentials were applied to investigate the spin-orbit interaction between a proton and a 6 He nucleus. An optical model analysis revealed that the spin-orbit potential for 6 He is characterized by a shallow and long-ranged shape compared with the global systematics of stable nuclei. A semi-microscopic analysis with a α + n + n cluster folding model suggests that the inclusion of realistic interaction between a proton and the α core is important in describing the p- 6 He elastic scattering. © 2013 Springer-Verlag Wien.
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Search for Perpendicular Plane Anomaly in pd Breakup at E<inf>p</inf> = 13 MeV 査読あり
Kimura S., Sagara K., Ishibashi K., Tanaka S., Ohnaka K., Maeda Y.
Few-Body Systems 54 ( 7-10 ) 1293 - 1296 2013年8月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：Few-Body Systems
Space Star (SS) anomalies in nd and pd breakup reactions below 20 MeV were reported since 1989, but their origin has not been found yet. We have considered two conditions for the SS anomalies: condition (a) where three outgoing nucleons form an equilateral triangle and condition (b) in which the triangle is perpendicular to the beam axis. The condition (b) was investigated by our previous systematic experiments on pd breakup. In the present study, we started systematic experiments for the condition (a). © 2013 Springer-Verlag Wien.
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Extraction of anti-analog giant dipole resonance and neutron skin thickness for <sup>208</sup>Pb
Yasuda J., Wakasa T., Okamoto M., Dozono M., Hatanaka K., Ichimura M., Kuroita S., Maeda Y., Noro T., Sakemi Y., Sasano M., Yako K.
Progress of Theoretical and Experimental Physics 2013 ( 6 ) 2013年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Progress of Theoretical and Experimental Physics
The anti-analog giant dipole resonance (AGDR) was separated from other excitations such as the spin-dipole resonance by multipole decomposition analysis of the 208Pb(→p,→n) reaction at a bombarding energy of Tp = 296MeV. The polarization transfer observables were found to be useful for carrying out this separation. The energy difference between the AGDR and the isobaric analog state (IAS)was determined to beΔE = 8.69 ± 0.36MeV,where the uncertainty includes both statistical and systematic contributions. Theoretical calculations using the proton-neutron relativistic quasi-particle random phase approximation predicted a strong correlation between ΔE and the neutron skin thickness ΔRpn. Under the assumption that the correlation predicted in this model is correct, the present ΔE value corresponds to a neutron skin thickness of ΔRpn = 0.216 ± 0.046 ± 0.015 fm, where the first and second uncertainties are the experimental and theoretical uncertainties, respectively. © 2013 The Author(s).
DOI： 10.1093/ptep/ptt038
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Extraction of anti-analog giant dipole resonance and neutron skin thickness for 208Pb 査読あり
Yasuda J., Wakasa T., Okamoto M., Dozono M., Hatanaka K., Ichimura M., Kuroita S., Maeda Y., Noro T., Sakemi Y., Sasano M., Yako K.
Progress of Theoretical and Experimental Physics 2013 ( 6 ) 063D02 2013年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Search for alpha inelastic condensed state in <sup>24</sup>Mg
Kawabata T., Adachi T., Fujiwara M., Hatanaka K., Ishiguro Y., Itoh M., Maeda Y., Matsubara H., Miyasako H., Nozawa Y., Saito T., Sakaguchi S., Sasamoto Y., Shimizu Y., Takahashi T., Tamii A., Terashima S., Tokieda H., Tomida N., Uesaka T., Uchida M., Yasuda Y., Yokota N., Yoshida H., Zenihiro J.
Journal of Physics: Conference Series 436 ( 1 ) 2013年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics: Conference Series
The alpha inelastic scattering from 24 Mg was measured to obtain the isoscalar natural-parity excitation strengths and to search for α-condensed states. Multipole decomposition analysis was performed for the measured cross sections, and the strength distributions for the ΔL = 0-3 transitions were successfully obtained. The decay particles from the excited states in 24 Mg were also measured in concidence with the inelastically scattered alpha particles. Candidates were found for α-condensed states around the 16 O core.
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Kurilkin A., Saito T., Ladygin V., Uesaka T., Hatano M., Isupov A., Janek M., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Vasiliev T., Yako K.
Physical Review C - Nuclear Physics 87 ( 5 ) 2013年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
A complete set of analyzing powers for the dâ - d→3Hp reaction at the kinetic beam energy of 200 MeV has been measured in the full angular range in the c.m. frame. The observed signs of the tensor analyzing powers A yy , A xx , and A xz at forward and backward directions have clearly demonstrated the sensitivity to the ratio of the D- and S-wave components of the triton and deuteron, respectively. The new high-precision data are compared with the prediction of the relativistic multiple-scattering model by using standard wave functions of the three-nucleon bound state and of the deuteron. © 2013 American Physical Society.
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Angular distributions of the vector Ay and tensor A yy, Axx, Axz analyzing powers in the d- D→3Hp reaction at 200 MeV 査読あり
Kurilkin A.K., Saito T., Ladygin V.P., Uesaka T., Hatano M., Isupov A.Yu., Janek M., Kato H., Ladygina N.B., Maeda Y., Malakhov A.I., Nishikawa J., Ohnishi T., Okamura H., Reznikov S.G., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Vasiliev T.A., Yako K.
Physical Review C - Nuclear Physics 87 ( 5 ) 51001 2013年5月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Search for alpha inelastic condensed state in 24Mg 査読あり
Kawabata, T, Adachi, T, Fujiwara, M, Hatanaka, K, Ishiguro, Y, Itoh, M, Maeda, Y, Matsubara, H, Miyasako, H, Nozawa, Y, Saito, T, Sakaguchi, S, Sasamoto, Y, Shimizu, Y, Takahashi, T, Tamii, A, Terashima, S, Tokieda, H, Tomida, N, Uesaka, T, Uchida, M, Yasuda, Y, Yokota, N, Yoshida, H.P, Zenihiro, J.
Journal of Physics: Conference Series 436 ( 1 ) 12009 2013年4月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Decomposing spin-dipole resonances by complete polarization transfer measurements 査読あり
Wakasa, T, Okamoto, M, Dozono, M, Hatanaka, K, Ichimura, M, Kuroita, S, Maeda, Y, Miyasako, H, Noro, T, Saito, T, Sakemi, Y, Yabe, T, Yako, K
AIP Conference Proceedings 1524 ( 1 ) 46 - 51 2013年4月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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26aHA-5 170MeVにおける錫同位体からの(p,n)IAS反応(26aHA 軽イオン反応・核融合・核モーメント,実験核物理領域)
坂口 聡志, 上坂 友洋, 若狭 智嗣, 坂口 治隆, 大田 晋輔, 川瀬 頌一郎, 川畑 貴裕, 菊地 陽介, 斉藤 透, 酒井 英行, 笹野 匡紀, 嶋 達志, 鈴木 智和, 民井 淳, 陳 瑞九, 時枝 紘史, 畑中 吉治, 前田 幸重, 松原 礼明, 宮迫 洋行, 矢向 謙太郎
日本物理学会講演概要集 68 ( 1 ) 2013年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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28pHB-12 重水素ガスアクティブ標的の性能評価(28pHB 測定器(IV),実験核物理領域)
大田 晋輔, 時枝 紘史, 堂園 昌伯, 郡司 卓, 浜垣 秀樹, 橋本 尚志, 川畑 貴裕, 川瀬 頌一郎, 久保野 茂, 久保田 悠樹, 李 清秀, 前田 幸重, 松原 礼明, 道正 新一郎, 大津 秀暁, 酒向 正巳, 上坂 友洋, 山口 英斉
日本物理学会講演概要集 68 ( 1 ) 2013年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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Measurements of the Cross Sections and Ay for D(p, n) Inclusive Breakup Reaction at 170 MeV 査読あり
Maeda Y., Saito T., Miyasako H., Uesaka T., Ota S., Kawase S., Kikuchi T., Tokieda H., Kawabata T., Yako K., Wakasa T., Sakaguchi S., Chen R., Sakaguchi H., Shima T., Suzuki T., Tamii A.
Few-Body Systems 54 ( 1 ) 291 - 294 2013年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Cross Section Enhancement in pd Reactions at Higher Energy 査読あり
Sagara K., Kuroita S., Sueta T., Shimoda H., Eguchi Y., Yashima K., Yabe T., Dozono M., Yamada Y., Wakasa T., Noro T., Matsubara H., Zenihiro J., Tameshige Y., Okamura H., Tamii A., Hatanaka K., Saito T., Maeda Y., Kamada H.
Few-Body Systems 54 ( 1 ) 469 - 473 2013年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Search for Alpha Inelastic Condensed State in 24Mg 査読あり
Kawabata T., Adachi T., Fujiwara M., Hatanaka K., Ishiguro Y., Itoh M., Maeda Y., Matsubara H., Miyasako H., Nozawa Y., Saito T., Sakaguchi S., Sasamoto Y., Shimizu Y., Takahashi T., Tamii A., Terashima S., Tokieda H., Tomida N., Uesaka T., Uchida M., Yasuda Y., Yokota N., Yoshida H.P., Zenihiro J.
Few-Body Systems 54 ( 1 ) 93 - 97 2013年3月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Maeda Y., Saito T., Miyasako H., Uesaka T., Ota S., Kawase S., Kikuchi T., Tokieda H., Kawabata T., Yako K., Wakasa T., Sakaguchi S., Chen R., Sakaguchi H., Shima T., Suzuki T., Tamii A.
Few-Body Systems 54 ( 1-4 ) 291 - 294 2013年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
The effects of three-nucleon force (3NF) has been actively studied by using the nucleon-deuteron (Nd) scattering states. The differential cross sections of the elastic Nd scattering at the energy below 150 MeV can be well reproduced by incorporating 3NF in the Faddeev calculation based on modern nucleon-nucleon (NN) interactions. On the other hand, the differential cross sections of Nd elastic and inelastic scatterings at 250 MeV show large discrepancies between the data and the Faddeev calculations with 3NF. It indicates the presence of the missing features of the three nucleon system at this energy region. For the systematic study about the energy dependence of this large discrepancies, we measured the differential cross sections and the vector analyzing power A y for the 2 H(p, n) inclusive breakup reaction at 170 MeV. The experiment was carried out at RCNP by detecting scattered neutrons by using the neutron detector NPOL3. The data was compared with the results of the Faddeev calculations with and without the 3NF. © 2012 Springer-Verlag.
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Search for Alpha Inelastic Condensed State in <sup>24</sup>Mg
Kawabata T., Adachi T., Fujiwara M., Hatanaka K., Ishiguro Y., Itoh M., Maeda Y., Matsubara H., Miyasako H., Nozawa Y., Saito T., Sakaguchi S., Sasamoto Y., Shimizu Y., Takahashi T., Tamii A., Terashima S., Tokieda H., Tomida N., Uesaka T., Uchida M., Yasuda Y., Yokota N., Yoshida H., Zenihiro J.
Few-Body Systems 54 ( 1-4 ) 93 - 97 2013年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
The alpha inelastic scattering from 24 Mg was measured to obtain the isoscalar natural-parity excitation strengths and to search for the α-condensed states. The multipole decomposition analysis for the measured cross sections was performed. The strength distributions for the ΔL = 0-3 were successfully obtained and the possible candidates for the α-condensed states around the 16 O core were found. © 2012 Springer-Verlag.
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Search for alpha condensed state in 24Mg 査読あり
Kawabata T., Adachi T., Fujiwara M., Hatanaka K., Ishiguro Y., Itoh M., Maeda Y., Matsubara H., Miyasako H., Nozawa Y., Saito T., Sakaguchi S., Sasamoto Y., Shimizu Y., Takahashi T., Tamii A., Terashima S., Tokieda H., Tomida N., Uesaka T., Uchida M., Yasuda Y., Yokota N., Yoshida H.P., Zenihiro J.
Progress of Theoretical Physics Supplement ( 196 ) 198 - 202 2012年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Search for Alpha Condensed State in ²⁴Mg (Frontier Issues in Physics of Exotic Nuclei)
KAWABATA Takahiro, ADACHI Tatsuya, FUJIWARA Mamoru, Kichiji HATANAKA, Yosuke ISHIGURO, Masatoshi ITOH, Yukie MAEDA, Hiroaki MATSUBARA, Hiroyuki MIYASAKO, Yuki NOZAWA, Toru SAITO, Satoshi SAKAGUCHI, Yoshiko SASAMOTO, Yohei SHIMIZU, Toshiya TAKAHASHI, Atsushi TAMII, Satoru TERASHIMA, Hiroshi TOKIEDA, Natsuki TOMIDA, Tomohiro UESAKA, Makoto UCHIDA, Yuusuke YASUDA, Naoki YOKOTA, Hidetomo P. YOSHIDA, Juzo ZENIHIRO, Department of Physics Kyoto University, Research Center for Nuclear Physics Osaka University, Research Center for Nuclear Physics Osaka University, Research Center for Nuclear Physics Osaka University, Department of Physics Kyoto University, Cyclotron and Radioisotope Center Tohoku University, Department of Applied Physics University of Miyazaki, Center for Nuclear Study University of Tokyo, Department of Applied Physics University of Miyazaki, Department of Physics Kyoto University, Department of Applied Physics University of Miyazaki, RIKEN(The Institute for Physical and Chemical Research), Center for Nuclear Study University of Tokyo, RIKEN(The Institute for Physical and Chemical Research), Cyclotron and Radioisotope Center Tohoku University, Research Center for Nuclear Physics Osaka University, RIKEN(The Institute for Physical and Chemical Research), Center for Nuclear Study University of Tokyo, Department of Physics Kyoto University, RIKEN(The Institute for Physical and Chemical Research), Department of Physics Tokyo Institute of Technology, Research Center for Nuclear Physics Osaka University, Department of Physics Kyoto University, Cyclotron and Radioisotope Center Tohoku University, RIKEN(The Institute for Physical and Chemical Research)
Progress of theoretical physics. Supplement 196 198 - 202 2012年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Publication Office, Progress of Theoretical Physics
The alpha inelastic scattering from ^<24>Mg was measured to obtain the isoscalar natural-parity excitation strengths and to search for the α-condensed states. The multipole decomposition analysis for the measured cross sections was performed. The strength distributions for the ΔL = 0-3 were successfully obtained and the possible candidates for the α-condensed states around the ^<16>O core were found.
DOI： 10.1143/PTPS.196.198
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Measurement of the vector and tensor analyzing powers for dp-elastic scattering at 880 MeV 査読あり
Kurilkin P., Ladygin V., Uesaka T., Suda K., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Krasnov V., Ladygina N., Livanov A., Maeda Y., Malakhov A., Piyadin S., Reznikov S., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M., Vasiliev T., Witala H.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 715 ( 1-3 ) 61 - 65 2012年8月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
The vector A y and tensor analyzing powers A yy and A xx for dp-elastic scattering were measured at Tdlab=880 MeV over the c.m. angular range from 60° to 140° at the JINR Nuclotron. The data are compared with predictions of different theoretical models based on the use of nucleon-nucleon forces only. The observed discrepancies of the measured analyzing powers from the calculations require the consideration of additional mechanisms. © 2012 Elsevier B.V.
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13aSB-2 発熱型荷電交換反応(^8He,^8Liγ)を用いた軽い核のスピン-アイソスピン応答の研究(13aSB 不安定核(実験),実験核物理領域)
宮 裕之, 下浦 享, 木佐森 慶一, 馬場 秀忠, 馬場 辰彦, 堂園 昌伯, 福田 直樹, 藤井 俊彦, 郷 慎太郎, 井手口 栄治, 稲辺 尚人, 伊藤 正俊, 亀田 大輔, 川畑 貴裕, 川瀬 頌一郎, 菊地 陽介, 久保 敏幸, 久保田 悠樹, 小林 幹, 近藤 洋介, 李 清秀, 前田 幸重, 松原 礼明, 三木 謙二郎, 道正 新一郎, 西 隆博, 西村 美月, 野地 俊平, 大田 晋輔, 坂口 聡, 酒井 英行, 笹本 良子, 笹野 匡紀, 佐藤 広海, 清水 陽平, 鈴木 宏, 高木 基伸, 竹田 浩之, 武内 聡, 民井 淳, 時枝 紘史, 津村 美保, 上坂 友洋, 柳沢 善行, 矢向 謙太郎, 横山 輪, 吉田 光一, Assie M., Beaumel D., Fariouz H., Stolz A.
日本物理学会講演概要集 67 ( 2 ) 2012年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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14aSP-11 ASTRO-H衛星搭載X線CCDカメラSXIで用いるPチャンネルCCDの放射線耐性試験(14aSP X線,宇宙線・宇宙物理領域)
西岡 祐介, 森 浩二, 大浦 智史, 小浦 祐明, 山内 誠, 中嶋 大, 上田 周太朗, 菅 裕哲, 林田 清, 穴吹 直久, 常深 博, 幸村 孝由, 池田 翔馬, 村上 弘志, 前田 幸重, 相良 建至, 堂谷 忠靖, 尾崎 正伸, SXIチーム
日本物理学会講演概要集 67 ( 2 ) 2012年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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Complete sets of polarization transfer observables for the 208Pb(p,n) reaction at 296 MeV and Gamow-Teller and spin-dipole strengths for 208Pb 査読あり
Wakasa T., Okamoto M., Dozono M., Hatanaka K., Ichimura M., Kuroita S., Maeda Y., Miyasako H., Noro T., Saito T., Sakemi Y., Yabe T., Yako K.
Physical Review C - Nuclear Physics 85 ( 6 ) 64606 2012年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Sasano M., Sakai H., Yako K., Wakasa T., Dozono M., Rodin V., Faessler A., Fujita K., Greenfield M., Hatanaka K., Itoh K., Kawabata T., Kuboki H., Maeda Y., Miki K., Muto K., Noji S., Okamura H., Sakemi Y., Sekiguchi K., Shimizu Y., Sasamoto Y., Tameshige Y., Tamii A., Uesaka T.
Physical Review C - Nuclear Physics 85 ( 6 ) 2012年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The double-differential cross sections for the 116Cd(p,n) and 116Sn(n,p) reactions were measured at 300 MeV for studying the nuclear matrix element of the 116Cd ββ decay. A multipole decomposition technique was applied to the spectra to extract the Gamow-Teller (GT) component. The integrated GT strengths up to an excitation energy of 30 MeV in the intermediate nucleus 116In are 40±6 and 11±1 in the (p,n) and (n,p) spectra, respectively, including the component from the isovector spin monopole (IVSM). The spectra are compared with those obtained from a theoretical calculation with a quasiparticle random phase approximation, where the contribution from the IVSM component as well as the interference effect between the GT and IVSM components are fully taken into account. © 2012 American Physical Society.
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Gamow-Teller transition strengths in the intermediate nucleus of the 116Cd double-β decay by the 116Cd (p ,n )116In and 116Sn (n ,p )116In reactions at 300 MeV 査読あり
Sasano M., Sakai H., Yako K., Wakasa T., Dozono M., Rodin V., Faessler A., Fujita K., Greenfield M.B., Hatanaka K., Itoh K., Kawabata T., Kuboki H., Maeda Y., Miki K., Muto K., Noji S., Okamura H., Sakemi Y., Sekiguchi K., Shimizu Y., Sasamoto Y., Tameshige Y., Tamii A., Uesaka T.
Physical Review C - Nuclear Physics 85 ( 6 ) 61301 2012年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Kurilkin A., Janek M., Kiselev A., Vasiliev T., Hatano M., Isupov A., Kato H., Ladygin V., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Saito T., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Uesaka T., Yako K.
Physics of Particles and Nuclei Letters 8 ( 10 ) 1078 - 1080 2011年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Particles and Nuclei Letters
The results on the vector A y and tensor A yy, A xx and A xz analyzing powers of the dd → 3Hen and dd → Hp reactions obtained at intermediate energies at RARF(RIKEN, Japan) are presented. The high precision experimental data are compared with the theoretical calculation within the one nucleon exchange model by using standard 3He, 3H and deuteron wave functions. The data demonstrate the sensitivity to the short-range 3He, 3H and deuteron spin structure. © 2011 Pleiades Publishing, Ltd.
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Kurilkin P., Ladygin V., Uesaka T., Suda K., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Krasnov V., Ladygina N., Livanov A., Maeda Y., Malakhov A., Reznikov S., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M., Vasiliev T.
Physics of Particles and Nuclei Letters 8 ( 10 ) 1081 - 1083 2011年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Particles and Nuclei Letters
New polarimeter based on the asymmetry measurement in dp-elastic scattering has been constructed at internal target at Nuclotron (JINR). The result on the deuteron analyzing powers A y, A yy and A xx in the deuteron-proton (dp) elastic scattering at the energies of 880 and 2000 MeV are presented. They are compared with different theoretical approaches. © 2011 Pleiades Publishing, Ltd.
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Search for alpha inelastic condensed state in 24Mg 査読あり
Kawabata, T., Adachi, T., Fujiwara, M., Hatanaka, K., Ishiguro, Y., Itoh, M., Maeda, Y., Matsubara, H., Miyasako, H., Nozawa, Y., Saito, T., Sakaguchi, S., Sasamoto, Y., Shimizu, Y., Takahashi, T., Tamii, A., Terashima, S., Tokieda, H., Tomida, N., Uesaka, T., Uchida, M., Yasuda, Y., Yokota, N., Yoshida, P., Zenihiro, J.
Journal of Physics: Conference Series 321 ( 1 ) 12012 - 12015 2011年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Elastic scattering of neutron-rich helium isotopes from polarized protons at 71 MeV/A 査読あり
Sakaguchi, S., Uesaka, T., Kawabata, T., Wakui, T., Aoi, N., Hashimoto, Y., Ichikawa, Y., Itoh, K., Itoh, M., Iwasaki, H., Kawahara, T., Kondo, Y., Kuboki, H., Maeda, Y., Nakamura, T., Nakao, T., Nakayama, Y., Okamura, H., Sakai, H., Sasamoto, Y., Sasano, M., Satou, Y., Sekiguchi, K., Shimamura, T., Shimizu, Y., Shinohara, M., Suda, K., Suzuki, D., Takahashi, Y., Tamii, A., Yako, K., Yamaguchi, M.
Journal of Physics: Conference Series 312 ( 8 ) 82037 - 82042 2011年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Complete set of deuteron analyzing powers for deuteron-proton elastic scattering at 250 MeV/nucleon and three-nucleon forces 査読あり
Sekiguchi, K., Okamura, H., Sakamoto, N., Suzuki, H., Dozono, M., Maeda, Y., Saito, T., Sakaguchi, S., Sakai, H., Sasano, M., Shimizu, Y., Wakasa, T., Yako, K.
Journal of Physics: Conference Series 312 ( 8 ) 82038 - 82041 2011年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Measurement of pd breakup cross sections in the off-plane star configurations 査読あり
Y. Maeda, H. Shimoda, Y. Eguchi, N. Fujita, K. Hatanaka, D. Ishikawa, S. Kuroita, A. Nonaka, H. Okamura, K. Sagara, T. Sueta, A. Tamii, K. Yashima
Journal of Physics: Conference Series 312 ( 8 ) 82031 - 82034 2011年9月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Analyzing power in elastic scattering of 6He from a polarized proton target at 71 MeV/nucleon
Sakaguchi S., Iseri Y., Uesaka T., Tanifuji M., Amos K., Aoi N., Hashimoto Y., Hiyama E., Ichikawa M., Ichikawa Y., Ishikawa S., Itoh K., Itoh M., Iwasaki H., Karataglidis S., Kawabata T., Kawahara T., Kuboki H., Maeda Y., Matsuo R., Nakao T., Okamura H., Sakai H., Sasamoto Y., Sasano M., Satou Y., Sekiguchi K., Shinohara M., Suda K., Suzuki D., Takahashi Y., Tamii A., Wakui T., Yako K., Yamaguchi M., Yamamoto Y.
Physical Review C - Nuclear Physics 84 ( 2 ) 2011年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The vector analyzing power has been measured for the elastic scattering of neutron-rich 6He from polarized protons at 71 MeV/nucleon making use of a newly constructed solid polarized proton target operated in a low magnetic field and at high temperature. Two approaches based on local one-body potentials were applied to investigate the spin-orbit interaction between a proton and a 6He nucleus. An optical model analysis revealed that the spin-orbit potential for 6He is characterized by a shallow and long-ranged shape compared with the global systematics of stable nuclei. A semimicroscopic analysis with an α+n+n cluster folding model suggests that the interaction between a proton and the α core is essentially important in describing the p+6He elastic scattering. The data are also compared with fully microscopic analyses using nonlocal optical potentials based on nucleon-nucleon g matrices. © 2011 American Physical Society.
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Large, thin solid hydrogen target using para-H<inf>2</inf>
Matsuda Y., Sakaguchi H., Zenihiro J., Ishimoto S., Suzuki S., Otsu H., Ohnishi T., Takeda H., Ozeki K., Tanaka K., Terashima S., Maeda Y., Kobayashi T., Koreeda A., Kamei K.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 643 ( 1 ) 6 - 10 2011年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
We have developed a large, thin solid hydrogen target (SHT) that is 30 mm in diameter and 1 mm thick for elastic scattering of protons from unstable nuclei. By using para-H 2 that has a high thermal conductivity at low temperatures, we could prevent sublimation at the target center due to radiation from the higher temperature surroundings. The uniform SHT was used during long-term scattering experiments and it maintained its shape and thickness. © 2011 Elsevier B.V. All rights reserved.
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Alpha inelastic scattering and cluster structures in <sup>24</sup>Mg
Kawabata T., Adachi T., Fujiwara M., Hatanaka K., Ishiguro Y., Itoh M., Maeda Y., Matsubara H., Miyasako H., Nozawa Y., Saito T., Sakaguchi S., Sasamoto Y., Shimizu Y., Takahashi T., Tamii A., Terashima S., Tokieda H., Tomida N., Uesaka T., Uchida M., Yasuda Y., Yokota N., Yoshida H., Zenihiro J.
AIP Conference Proceedings 1355 194 - 199 2011年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
The alpha inelastic scattering from 24 Mg was measured to obtain the isoscalar natural-parity excitation strengths and to search for the α-condensed states. The multipole decomposition analysis for the measured cross sections was performed. The strength distributions for the ΔL=0-3 were successfully obtained and the possible candidates for the α-condensed states around the 16 O core were found. © 2011 American Institute of Physics.
DOI： 10.1063/1.3584066
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The 270?MeV deuteron beam polarimeter at the Nuclotron Internal Target Station 査読あり
P.K. Kurilkin, V.P. Ladygin, T. Uesaka, K. Suda, Yu.V. Gurchin, A.Yu. Isupov, K. Itoh, M. Janek, J.-T. Karachuk, T. Kawabata, A.N. Khrenov, A.S. Kiselev, V.A. Kizka, J. Kliman, V.A. Krasnov, A.N. Livanov, Y. Maeda, A.I. Malakhov, V. Matousek, M. Morhach, S.G. Reznikov, S. Sakaguchi, H. Sakai, Y. Sasamoto, K. Sekiguchi, I. Turzo, T.A. Vasiliev
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 642 ( 1 ) 45 - 51 2011年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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The 270 MeV deuteron beam polarimeter at the Nuclotron Internal Target Station 査読あり
Kurilkin P.K., Ladygin V.P., Uesaka T., Suda K., Gurchin Y.V., Isupov A.Y., Itoh K., Janek M., Karachuk J.T., Kawabata T., Khrenov A.N., Kiselev A.S., Kizka V.A., Kliman J., Krasnov V.A., Livanov A.N., Maeda Y., Malakhov A.I., Matousek V., Morhach M., Reznikov S.G., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Turzo I., Vasiliev T.A.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 642 ( 1 ) 45 - 51 2011年6月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
A deuteron beam polarimeter has been constructed at the Internal Target Station at the Nuclotron of JINR. The polarimeter is based on spin-asymmetry measurements in the dp elastic scattering at large angles and the deuteron kinetic energy of 270 MeV. It allows to measure vector and tensor components of the deuteron beam polarization simultaneously. © 2011 Elsevier B.V. All rights reserved.
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Three nucleon force effects in intermediate-energy deuteron analyzing powers for dp elastic scattering 査読あり
K. Sekiguchi, H. Okamura, N. Sakamoto, H. Suzuki, M. Dozono, Y. Maeda, T. Saito, S. Sakaguchi, H. Sakai, M. Sasano, Y. Shimizu, T. Wakasa, K. Yako, H. WitaナＢ, W. Glテカckle, J. Golak, H. Kamada, A. Nogga
Physical Review C 83 ( 6 ) 61001 - 61005 2011年6月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Recent results with polarized deuterons and polarimetry at Nuclotron-NICA 査読あり
V P Ladygin, T Uesaka, V V Glagolev, Yu V Gurchin, A Yu Isupov, K Itoh, M Janek, J-T Karachuk, T Kawabata, A N Khrenov, A S Kiselev, V A Kizka, A B Kurepin, A K Kurilkin, P K Kurilkin, V A Krasnov, N B Ladygina, D Lipchinski, A N Livanov, Y Maeda, A I Malakhov, G Martinska, S Nedev, S M Piyadin, E B Plekhanov, J Popovichi, S Rangelov, S G Reznikov, P A Rukoyatkin, S Sakaguchi, H Sakai, K Sekiguchi, M A Shikhalev, K Suda, A A Terekhin, J Urban, T A Vasiliev, I E Vnukov, H Witala
Journal of Physics: Conference Series 295 ( 1 ) 012131 2011年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Alpha inelastic scattering and cluster structures in 24Mg 査読あり
T. Kawabata, T. Adachi, M. Fujiwara, K. Hatanaka, Y. Ishiguro, M. Itoh, Y. Maeda, H. Matsubara, H. Miyasako, Y. Nozawa, T. Saito, S. Sakaguchi, Y. Sasamoto, Y. Shimizu, T. Takahashi, A. Tamii, S. Terashima, H. Tokieda, N. Tomida, T. Uesaka, M. Uchida, Y. Yasuda, N. Yokota, H. P. Yoshida, and J. Zenihiro
AIP Conference Proceedings 1355 ( 1 ) 194 - 199 2011年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Discrepancy of Cross Sections in pd Breakup Reactions at E<inf>p</inf> = 250 MeV
Kuroita S., Sagara K., Eguchi Y., Yashima K., Shishido T., Yabe T., Dozono M., Yamada Y., Wakasa T., Noro T., Matsubara H., Zenihiro J., Tamii A., Okamura H., Hatanaka K., Saito T., Maeda Y., Kamada H., Tameshige Y.
Few-Body Systems 50 ( 1-4 ) 287 - 289 2011年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
In our previous inclusive experiment on 2 H(p, p)pn at 247 MeV, the measured cross section at forward angles is about twice larger than 3N calculation with ππ 3NF. Therefore, we have made an exclusive experiment on 2 H(p, p 1 p 2 )n at the same energy. The preliminary data suggest that the cross section was enhanced at forward angle of θ 1 and θ 2 . © 2011 Springer-Verlag.
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Large, thin solid hydrogen target using para-H2 査読あり
Y. Matsuda, H. Sakaguchi, J. Zenihiro, S. Ishimoto, S. Suzuki, H. Otsu, T. Ohnishi, H. Takeda, K. Ozeki, K. Tanaka, S. Terashima, Y. Maeda, T. Kobayashi, A. Koreeda and K. Kamei
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 643 ( 1 ) 6 - 10 2011年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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26aGK-10 超許容フェルミ遷移型荷電交換反応^<90>Zr(^<10>C,^<10>B)によるアイソベクトル型単極遷移の研究(26aGK 宇宙核物理・軽イオン,実験核物理領域)
笹本 良子, 上坂 友洋, 下浦 享, 道正 新一郎, 大田 晋輔, 時枝 紘史, 宮 裕之, 川瀬 頌一郎, 菊地 陽介, 木佐森 慶一, 高木 基伸, 堂園 昌伯, 松原 礼明, 野地 俊平, 三木 謙二郎, 矢向 謙太郎, 酒井 英行, 久保 敏幸, 柳澤 善行, 吉田 光一, 大西 哲哉, 福田 直樹, 竹田 浩之, 亀田 大輔, 稲辺 尚人, 青井 考, 武内 聡, 市原 卓, 馬場 秀忠, 坂口 聡志, Doornembal P., Wang He, Chen Ruijiu, 清水 陽平, 河原 朋美, 川畑 貴裕, 横田 直樹, 前田 幸重, 宮迫 洋行, Berg G. P. A.
日本物理学会講演概要集 66 ( 1 ) 2011年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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26aGK-7 sd殻領域のN=Z偶々核におけるM1遷移強度分布と強度に関するクエンチング(26aGK 宇宙核物理・軽イオン,実験核物理領域)
松原 礼明, 民井 淳, 足立 竜也, 石川 大貴, 伊藤 正俊, Carter J., 岡村 弘之, Ozel B., 加藤 舞子, 川畑 貴裕, 黒板 翔, 坂口 治隆, 坂口 聡志, 酒見 泰寛, 笹本 良子, 清水 陽平, Smit F. D., 新原 佳弘, 須田 健嗣, 銭廣 十三, 爲重 雄司, 堂園 昌伯, 時枝 紘史, 中田 仁, 中西 康介, von Neumann-Cosel P., 野中 敦, Neveling R., 畑中 吉治, 藤田 訓裕, 藤田 規之, 藤田 浩彦, 藤田 佳孝, Perez A., Popescu L. A., Poltoratska I., 前田 幸重, 山田 亮太, 山田 由紀子, 與曽井 優, Richter A., Rubio B.
日本物理学会講演概要集 66 ( 1 ) 2011年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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EXPERIMENTS ON THE STUDY OF DEUTERON-PROTON INTERACTION AT INTERNAL TARGET AT NUCLOTRON 査読あり
S.M. Piyadin, Yu.V Gurchin, P.K. Kurilkin, A.A. Terekhin, V.V. Glagolev, A.Yu. Isupov, K. Itoh, M. Janek, J.-T. Karachuk, T. Kawabata, A.N. Khrenov, A.S. Kiselev, V.A. Kizka, V.A. Krasnov, A.K. Kurilkin, V.P. Ladygin, N.B. Ladygina, A.N. Livanov, Y. Maeda, A.I. Malakhov, G. Martinska, E.B. Plekhanov, S.G. Reznikov, S. Sakaguchi, H. Sakai, Y. Sasamoto, K. Sekiguchi, A.K. Semenov, M.A. Shikhalev, K. Suda, A.E. Tumanov, T. Uesaka, T.A.Vasiliev, H. Witala
International Journal of Modern Physics A (IJMPA) 26 ( 3-4 ) 683 - 685 2011年2月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Recent results with polarized deuterons and polarimetry at Nuclotron-NICA 査読あり
Ladygin V.P., Uesaka T., Glagolev V.V., Gurchin Y.V., Isupov A.Y., Itoh K., Janek M., Karachuk J.T., Kawabata T., Khrenov A.N., Kiselev A.S., Kizka V.A., Kurepin A.B., Kurilkin A.K., Kurilkin P.K., Krasnov V.A., Ladygina N.B., Lipchinski D., Livanov A.N., Maeda Y., Malakhov A.I., Martinska G., Nedev S., Piyadin S.M., Plekhanov E.B., Popovichi J., Rangelov S., Reznikov S.G., Rukoyatkin P.A., Sakaguchi S., Sakai H., Sekiguchi K., Shikhalev M.A., Suda K., Terekhin A.A., Urban J., Vasiliev T.A., Vnukov I.E., Witala H.
Journal of Physics: Conference Series 295 ( 1 ) 2011年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics: Conference Series
Recent results on the deuteron analyzing powers obtained in collisions of polarized deuterons with protons and light nuclei at intermediate and high energies are reported. The obtained results are sensitive to the spin structure of the short range correlations. The prospects of the spin program for hadronic reactions at Nuclotron-NICA facility is discussed. The polarimetry developments are also presented.
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A study of the light Nuclei spin structure at intermediate energies (LHEP-JINR) 査読あり
Janek M., Ladygin V., Uesaka T., Glagolev V., Gurchin Y., Isupov A., Itoh K., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Kurepin A., Kurilkin A., Kurilkin P., Krasnov V., Ladygina N., Lipchinski D., Livanov A., Maeda Y., Malakhov A., Martinska G., Nedev S., Piyadin S., Plekhanov E., Popovichi J., Rangelov S., Reznikov S., Rukoyatkin P., Sakaguchi S., Sakai H., Sekiguchi K., Shikhalev M., Suda K., Terekhin A., Urban J., Vasiliev T., Vnukov I., Witala H.
17th Conference of Czech and Slovak Physicists, Proceedings 49 - 50 2011年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：17th Conference of Czech and Slovak Physicists, Proceedings
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Discrepancy of Cross Sections in pd Breakup Reactions at Ep = 250?MeV 査読あり
S. Kuroita, K. Sagara, Y. Eguchi, K. Yashima, T. Shishido, T. Yabe, M. Dozono, Y. Yamada, T. Wakasa, T. Noro, H. Matsubara, J. Zenihiro, A. Tamii, H. Okamura, K. Hatanaka, T. Saito, Y. Maeda, H. Kamada, Y. Tameshige
Few-Body Systems 50 ( 1 ) 287 - 289 2010年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Experimental Study of Space Star Anomaly in pd Breakup Around 10 MeV/A 査読あり
T. Yabe, K. Sagara, S. Kuroita, K. Ishibashi, T. Tamura, Y. Eguchi, K. Yashima, T. Sueta, H. Shimoda, Y. Maeda, Y.
Few-Body Systems 50 ( 1 ) 291 - 293 2010年11月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Analyzing power for proton elastic scattering from the neutron-rich He6 nucleus
Uesaka T., Sakaguchi S., Iseri Y., Amos K., Aoi N., Hashimoto Y., Hiyama E., Ichikawa M., Ichikawa Y., Ishikawa S., Itoh K., Itoh M., Iwasaki H., Karataglidis S., Kawabata T., Kawahara T., Kuboki H., Maeda Y., Matsuo R., Nakao T., Okamura H., Sakai H., Sasamoto Y., Sasano M., Satou Y., Sekiguchi K., Shinohara M., Suda K., Suzuki D., Takahashi Y., Tanifuji M., Tamii A., Wakui T., Yako K., Yamamoto Y., Yamaguchi M.
Physical Review C - Nuclear Physics 82 ( 2 ) 2010年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Vector analyzing power for the proton-He6 elastic scattering at 71 MeV/nucleon has been measured for the first time, with a newly developed polarized proton solid target, which works at a low magnetic field of 0.09 T. The results are found to be incompatible with a t-matrix folding model prediction. Comparisons of the data with g-matrix folding analyses clearly show that the vector analyzing power is sensitive to the nuclear structure model used in the reaction analysis. The α-core distribution in He6 is suggested to be a possible key for understanding the nuclear structure sensitivity. © 2010 The American Physical Society.
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Analyzing power for proton elastic scattering from the neutron-rich 6He nucleus 査読あり
T. Uesaka, S. Sakaguchi, Y. Iseri, K. Amos, N. Aoi, Y. Hashimoto, E. Hiyama, M. Ichikawa, Y. Ichikawa, S. Ishikawa, K. Itoh, M. Itoh, H. Iwasaki, S. Karataglidis, T. Kawabata, T. Kawahara, H. Kuboki, Y. Maeda, R. Matsuo, T. Nakao, H. Okamura, H. Sakai, Y. Sasamoto, M. Sasano, Y. Satou, K. Sekiguchi, M. Shinohara, K. Suda, D. Suzuki, Y. Takahashi, M. Tanifuji, A. Tamii, T. Wakui, K. Yako, Y. Yamamoto, M. Yamaguchi
Physical Review C 82 ( 2 ) 021602 - 021605 2010年8月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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14pSE-10 pd分解反応断面積におけるStar異常の精密研究(14pSE 宇宙核物理・軽イオン,実験核物理領域)
矢部 達也, 相良 建至, 黒板 翔, 下田 広己, 末田 雄大, 江口 祐一郎, 八嶋 恵介, 宍戸 拓郎, 石橋 和久, 田村 隆志, 前田 幸重, 畑中 吉治, 岡村 弘之, 民井 淳
日本物理学会講演概要集 65 ( 2 ) 2010年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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中性子放射化分析によるヒ素の定量の半減期依存性(平成21年度卒業論文抄録)
宮原 一平, 松田 達郎, 前田 幸重
放射化分析 ( 26 ) 2010年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：放射化分析研究会
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Sekiguchi K., Sakamoto N., Sasano M., Sakaguchi S., Okamura H., Suzuki H., Sakai H., Yako K., Shimizu Y., Maeda Y., Saito T., Wakasa T., Dozono M.
EPJ Web of Conferences 3 2010年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：EPJ Web of Conferences
© Owned by the authors, published by EDP Sciences, 2010. Measurements of a complete set of deuteron analyzing powers (iT 11 , T 20 , T 21 , T 22 ) for elastic deuteron-proton scattering at 250 MeV/nucleon have been performed with polarized deuteron beams at RIKEN RI Beam Factory. The obtained data are compared with the Faddeev calculations based on the modern nucleon-nucleon forces together with the Tucson-Melbourne'99, and UrbanaIX three nucleon forces.
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Measurement of <sup>2</sup>H (p, pp)n cross sections at E<inf>p</inf> = 250 MeV
Kuroita S., Sagara K., Eguchi Y., Yashima K., Yabe T., Shishido T., Dozono M., Yamada Y., Wakasa T., Noro T., Matsubara H., Zenihiro J., Tamii A., Okamura H., Hatanaka K., Saito T., Maeda Y., Kamada H., Tameshige Y.
EPJ Web of Conferences 3 2010年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：EPJ Web of Conferences
© Owned by the authors, published by EDP Sciences, 2010. In our previous inclusive experiment on pd breakup at E p = 247 MeV, we found experimental cross section is about twice larger than 3N calculation with ππ3NF at forward angle. Therefore we made exclusive measurement of 2 H(p, p1 p2)n cross section at the same 247 MeV. Preliminary data indicate that the cross section enhancement appears at forward angles of θ 1 and θ 2 . We made also inclusive experiment again and confirmed the previous data.
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Study of breakup mechanism of a loosely bound projectile in a region of Coulomb-breakup dominance
Okamura H., Hatanaka K., Ikeda T., Itoh K., Kumasaka H., Maeda Y., Saito T., Sakai H., Sekiguchi K., Suda K., Suzuki R., Uesaka T., Wakasa T., Yako K.
EPJ Web of Conferences 3 2010年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：EPJ Web of Conferences
© Owned by the authors, published by EDP Sciences, 2010. A kinematically complete measurement of the deuteron elastic break reaction has been carried out at E d = 140 MeV on 12 C, 40 Ca, 90 Zr, and 208 Pb targets in a wide angular range of θ p , θ n = 0° -8° for a detailed study of the reaction mechanism of loosely bound projectiles in kinematical regions of Coulomb-breakup dominance. A finite-range calculation of the post-form distorted-wave Born approximation is presented.
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Spin?isospin selectivity in three-nucleon forces 査読あり
H. Mardanpour, H.R. Amir-Ahmadi, R. Benard, A. Biegun, M. Eslami-Kalantari, L. Joulaeizadeh, N. Kalantar-Nayestanaki, M. Ki?, St. Kistryn, A. Kozela, H. Kuboki, Y. Maeda, M. Mahjour-Shafiei, J.G. Messchendorp, K. Miki, S. Noji, A. Ramazani-Moghaddam-Arani, H. Sakai, M. Sasano, K. Sekiguchi, E. Stephan, R. Sworst, Y. Takahashi, K. Yako
Physics Letters B 687 ( 2-3 ) 149 - 153 2010年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Spin-isospin selectivity in three-nucleon forces
Mardanpour H., Amir-Ahmadi H., Benard R., Biegun A., Eslami-Kalantari M., Joulaeizadeh L., Kalantar-Nayestanaki N., Kiš M., Kistryn S., Kozela A., Kuboki H., Maeda Y., Mahjour-Shafiei M., Messchendorp J., Miki K., Noji S., Ramazani-Moghaddam-Arani A., Sakai H., Sasano M., Sekiguchi K., Stephan E., Sworst R., Takahashi Y., Yako K.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 687 ( 2-3 ) 149 - 153 2010年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Precision data are presented for the break-up reaction, 2H (over(p, →), p p) n, within the framework of nuclear-force studies. The experiment was carried out at KVI using a polarized-proton beam of 190 MeV impinging on a liquid-deuterium target and by exploiting the detector, BINA. Some of the vector-analyzing powers are presented and compared with state-of-the-art Faddeev calculations including three-nucleon forces effect. Significant discrepancies between the data and theoretical predictions were observed for kinematical configurations which correspond to the 2H (over(p, →), 2He) n channel. These results are compared to the 2H (over(p, →), d) p reaction to test the isospin sensitivity of the present three-nucleon force models. The current modeling of two and three-nucleon forces is not sufficient to describe consistently polarization data for both isospin states. © 2010 Elsevier B.V. All rights reserved.
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Short-range correlations studies in collisions of polarized nuclei at Nuclotron-M 査読あり
Ladygin V., Uesaka T., Azhgirey L., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Kurepin A., Kurilkin A., Kurilkin P., Krasnov V., Ladygina N., Lipchinski D., Livanov A., Maeda Y., Malakhov A., Martinska G., Nedev S., Piyadin S., Plekhanov E., Popovichi J., Rangelov S., Reznikov S., Rukoyatkin P., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M., Suda K., Terekhin A., Urban J., Vasiliev T., Vnukov I., Witala H.
EPJ Web of Conferences 3 2010年4月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：EPJ Web of Conferences
© Owned by the authors, published by EDP Sciences, 2010. The status and prospects of 2-nucleon and 3-nucleon short range correlations (SRCs) studies at Nuclotron-M (JINR) are presented. This program is focused on the investigations of the spin part of SRCs with polarized deuteron beam from new high intensity polarized deuterons ion source which is under development at JINR. The wide experimental program on the systematic studies of the polarization effects in dp-elastic scattering, dp-nonmesonic breakup, dd → 3Hen(3Hp) and d3He → p4He reactions sensitive to SRCs using both internal and extracted beam at Nuclotron-M is presented.
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21pBH-2 E_p=250MeV ^2H(p,pp)n反応における微分断面積の異常(21pBH 軽イオン核反応,実験核物理領域)
黒板 翔, 相良 建至, 江口 祐一郎, 八嶋 恵介, 矢部 達也, 宍戸 拓郎, 堂園 昌伯, 山田 由希子, 若狭 智嗣, 野呂 哲夫, 松原 礼明, 銭廣 十三, 民井 淳, 岡村 弘之, 畑中 吉治, 斎藤 透, 前田 幸重, 鎌田 裕之
日本物理学会講演概要集 65 ( 1 ) 2010年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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Sasano M., Sakai H., Yako K., Miki K., Noji S., Wakasa T., Dozono M., Fujita K., Greenfield M., Hatanaka K., Kawabata T., Kuboki H., Maeda Y., Okamura H., Sakemi Y., Sekiguchi K., Shimizu Y., Tameshige Y., Tamii A., Uesaka T., Sasamoto Y., Itoh K., Muto K.
AIP Conference Proceedings 1180 102 - 106 2009年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
The double differential cross sections for the 116 Cd(p,n) and 116 Sn(n,p) reactions at 300 MeV have been measured over a wide excitation-energy region including Gamow-Teller (GT) giant resonance (GTGR) for studying GT transition strengths in the intermediate nucleus of the 116 Cd double-β decay, namely 116 In. A large amount of the strengths in the β + direction has been newly found in the energy region up to 30 MeV, which may imply that the GT strengths in the GTGR region contribute to the nuclear matrix element of the two-neutrino double-β decay. © 2009 American Institute of Physics.
DOI： 10.1063/1.3266084
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Gamow-Teller Strength Distributions in 48Sc by the 48Ca(p,n) and 48Ti(n,p) Reactions and Two-Neutrino Double-β Decay Nuclear Matrix Elements 査読あり
K. Yako, M. Sasano, K. Miki, H. Sakai, M. Dozono, D. Frekers, M. B. Greenfield, K. Hatanaka, E. Ihara, M. Kato, T. Kawabata, H. Kuboki, Y. Maeda, H. Matsubara, K. Muto, S. Noji, H. Okamura, T. H. Okabe, S. Sakaguchi, Y. Sakemi, Y. Sasamoto, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, T. Uesaka, T. Wakasa, and H. Zheng
Physical Review Letters 103 ( 1 ) 12503 - 12507 2009年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Three-nucleon force effects in the 1H(\vec{d},\vec{p}p)n reaction at 135 MeV/nucleon 査読あり
K. Sekiguchi, H. Sakai, H. Wita?a, W. Gl?ckle, J. Golak, K. Itoh, H. Kamada, T. Kawabata, H. Kuboki, Y. Maeda, A. Nogga, H. Okamura, S. Sakaguchi, N. Sakamoto, Y. Sasamoto, M. Sasano, R. Skibi?ski, K. Suda, Y. Takahashi, T. Uesaka, T. Wakasa, K. Yako
Physical Review C 79 ( 5 ) 054008 - 054022 2009年5月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Measurement of off-plane star anomaly in pd breakup at Ep = 9:5 MeV and Ep = 13 MeV
Sueta T., Kuroita S., Shimoda H., Eguchi Y., Yashima K., Maeda Y., Sagara K.
Modern Physics Letters A 24 ( 11-13 ) 863 - 866 2009年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
We measured D(p, pp)n cross section at E p = 9.5 MeV and 13 MeV at off-plane star configurations, including the space star where the star is perpendicular to the beam axis. The experimental results were compared with recent pd breakup calculations using screened Coulomb force, and disagreement was found to smoothly vary with an inclination angle of the off-plane star, α. Further systematic experiments are necessary to investigate the star anomaly. © 2009 World Scientific Publishing Company.
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STUDY FOR THREE-NUCLEON FORCE BY pd BREAKUP REACTIONS 査読あり
SHO KUROITA, K. SAGARA, T. SUETA, H. SHIMODA, Y. EGUCHI, K. YASHIMA, Y. MAEDA, Y. YAMADA, T. WAKASA, T. NORO, Y. TAMESHIGE, A. TAMII, K. HATANAKA
International Journal of Modern Physics A 24 ( 40495 ) 823 - 826 2009年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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MEASUREMENT AND RE-ANALYSIS OF TENSOR ANALYZING POWER OF pd RADIATIVE CAPTURE AT RCNP 査読あり
KENSHI SAGARA, Y. TAMESHIGE, K. HATANAKA, S. KUROITA, H. MATSUBARA, K. FUJITA, Y. SHIMIZU, T. KAWABATA, Y. MAEDA, Y. SAKEMI, H. OKAMURA, K. SEKIGUCHI, A. TAMII, T. WAKASA
International Journal of Modern Physics A 24 ( 40496 ) 831 - 834 2009年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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MEASUREMENT OF OFF-PLANE STAR ANOMALY IN pd BREAKUP AT Ep = 9.5 MeV AND Ep = 13 MeV 査読あり
T. SUETA, S. KUROITA, H. SHIMODA, Y. EGUCHI, K. YASHIMA, Y. MAEDA, K. SAGARA
International Journal of Modern Physics A 24 ( 40496 ) 863 - 866 2009年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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MEASUREMENT OF OFF-PLANE STAR ANOMALY IN pd BREAKUP AT Ed = 26 MeV 査読あり
HIROKI SHIMODA, Y. MAEDA, S. KUROITA, T. SUETA, Y. EGUCHI, K. YASHIMA, K. SAGARA
International Journal of Modern Physics A 24 ( 40496 ) 859 - 862 2009年4月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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28aSG-12 10MeV近傍での^2H(p,pp)n反応のStarおよびQFS断面積の異常探索(28aSG 高スピン・核構造・核融合・核分裂・超重核・軽イオン核反応,実験核物理領域)
江口 祐一郎, 黒板 翔, 八嶋 恵介, 下田 広巳, 末田 雄大, 宍戸 拓郎, 矢部 達也, 前田 幸重, 石川 壮一, 相良 建至
日本物理学会講演概要集 64 ( 1 ) 2009年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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Nuclear structure relevant to neutrinoless double beta decay: The valence protons in 76Ge and 76Se 査読あり
B. P. Kay, J. P. Schiffer, S. J. Freeman, T. Adachi, J. A. Clark, C. M. Deibel, H. Fujita, Y. Fujita, P. Grabmayr, K. Hatanaka, D. Ishikawa, H. Matsubara, Y. Meada, H. Okamura, K. E. Rehm, Y. Sakemi, Y. Shimizu, H. Shimoda, K. Suda, Y. Tameshige, A. Tamii, C. Wrede
Physical Review C 79 ( 2 ) 021301 - 021304 2009年2月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Gamow-Teller unit cross sections of the (\vec{p},n) reaction at 198 and 297 MeV on medium-heavy nuclei 査読あり
M. Sasano, H. Sakai, K. Yako, T. Wakasa, S. Asaji, K. Fujita, Y. Fujita, M. B. Greenfield, Y. Hagihara, K. Hatanaka, T. Kawabata, H. Kuboki, Y. Maeda, H. Okamura, T. Saito, Y. Sakemi, K. Sekiguchi, Y. Shimizu, Y. Takahashi, Y. Tameshige, A. Tamii
Physical Review C 79 ( 2 ) 024602 - 024610 2009年2月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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ANALYZING POWERS MEASUREMENT FOR d - p ELASTIC SCATTERING AT THE INTERNAL TARGET STATION OF NUCLOTRON 査読あり
P. K. KURILKIN, K. SUDA, T. UESAKA, V. P. LADYGIN, YU. V. GURCHIN, A. YU. ISUPOV, K. ITOH, M. JANEK, J.-T. KARACHUK, T. KAWABATA, A. N. KHRENOV, A. S. KISELEV, V. A. KIZKA, J. KLIMAN, V. A. KRASNOV, N. B. LADYGINA, A. N. LIVANOV, Y. MAEDA, A. I. MALAKHOV
International Journal of Modern Physics A 24 ( 40212 ) 530 - 533 2009年1月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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THE ANGULAR DISTRIBUTIONS OF THE VECTOR Ay AND TENSOR Ayy, Axx, Axz ANALYZING POWERS IN THE dd → 3Hp AND dd → 3Hen REACTIONS AT Ed = 200 AND 270 MeV 査読あり
A. K. KURILKIN, M. JANEK, T. A. VASILIEV, A. S. KISELEV, T. SAITO, V. P. LADYGIN, T. UESAKA, M. HATANO, A. YU. ISUPOV, H. KATO, N. B. LADYGINA, Y. MAEDA, A. I. MALAKHOV, J. NISHIKAWA, T. OHNISHI, H. OKAMURA, S. G. REZNIKOV, H. SAKAI, N. SAKAMOTO, S. SAKOD
International Journal of Modern Physics A 24 ( 40212 ) 526 - 529 2009年1月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Kurilkin A., Janek M., Vasiliev T., Kiselev A., Saito T., Ladygin V., Uesaka T., Hatano M., Yu. Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
International Journal of Modern Physics A 24 ( 2-3 ) 526 - 529 2009年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：International Journal of Modern Physics A
The data on the vector Ay and tensor Ayy, A xx, Axz analyzing powers for the \overrightarrow dd \to 3\!\!Hp and \overrightarrow dd \to 3\!\!Hen reactions at Ed = 200 and 270 MeV are presented. The data demonstrate large values of analyzing powers and their strong variation versus the scattering angle. The observed negative sign of the tensor analyzing powers for these reactions at small angles clearly demonstrate the sensitivity to the D/S ratio of the 3H and 3He wave functions, respectively. The calculations performed within one-nucleon exchange model with the use of the standard three-nucleon bound state wave functions fail to reproduce the data on the tensor analyzing powers. © 2009 World Scientific Publishing Company.
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A systematic study of 3NF effects in p + d break-up with BINA at 190MeV
Mardanpour H., Amir-Ahmadi H., Benard R., Biegun A., Eslami-Kalantari M., Kalantar-Nayestanaki N., Kiš M., Kistryn S., Kozela A., Kuboki H., Maeda Y., Mahjour-Shafiei M., Messchendorp J., Miki K., Noji S., Ramazani-Moghaddam-Arani A., Sakai H., Sasano M., Sekiguchi K., Stephan E., Sworst R., Takahashi Y., Yako K.
Few-Body Systems 44 ( 1-4 ) 49 - 52 2008年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
A systematic study of three-nucleon force (3NF) effects in break-up reactions has been carried out at KVI at several energies. In this article, the p + d → p + p + n reaction with a polarized-proton beam of 190MeV will be discussed. The experiment was performed by exploiting a new detector called BINA. Some results for high-precision vector analyzing powers and differential cross sections are presented and compared with state-of-the-art Faddeev calculations with or without 3NF. © Springer-Verlag 2008.
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Systematic measurement of the D(p, pp)n cross section at KUTL 査読あり
Sagara K., Sugimoto T., Kuroita S., Maeda Y., Sueta T., Shimoda H.
Few-Body Systems 44 ( 1-4 ) 203 - 205 2008年12月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
Systematic measurement of the D(p,pp)n cross section at E = 13MeV at star configurations at various inclined angle α is in progress at Kyushu University tandem accelerator laboratory (KUTL). The measured cross section at space star (α = 90°) is about 12% below the recent pd calculation. The next measurement is being made at 0° < α < 90° to see if the large anomaly of about 25% found by the Köln group (2006) at backward α exists also at forward α. © Springer-Verlag 2008. p
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Measurement of A<inf>zz</inf> of pd radiative capture at E<inf>d</inf>=196MeV 査読あり
Tameshige Y., Hatanaka K., Sagara K., Dozono M., Fujita K., Ihara E., Kaneda T., Kato M., Kawabata T., Kuroita S., Maeda Y., Matsubara H., Okamura H., Sakemi Y., Sekiguchi K., Shimizu Y., Sugimoto T., Tamii A., Wakasa T.
Few-Body Systems 44 ( 1-4 ) 179 - 181 2008年11月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Few-Body Systems
In our previous measurement of pd radiative capture at E = 137 and 196MeV, we found an interesting fact that the measured tensor analyzing powers show the relation A ≈ A , although calculated A and A are apparently different, A ≠ A . The measured A agrees fairly well with the 3N calculations, and the measured A largely disagrees with calculated A . Similar experiments on pd capture have been made at KVI at nearly the same energies of 130-180MeV. The KVI data also support A ≈ A relation, but absolute values of A and A at KVI are about half of RCNP data. Therefore, we made a new experiment of pd capture at E =196MeV. A was measured in three different ways, and data analysis is in progress. Preliminary data seem to support our previous data. © Springer-Verlag 2008. d xx yy xx yy xx yy yy xx xx xx yy xx yy d zz
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Kawabata T., Sasamoto Y., Maeda Y., Sakaguchi S., Shimizu Y., Suda K., Uesaka T., Fujiwara M., Hashimoto H., Hatanaka K., Kawase K., Matsubara H., Nakanishi K., Tameshige Y., Tamii A., Itoh K., Itoh M., Yoshida H., Kanada-En'Yo Y., Uchida M.
International Journal of Modern Physics E 17 ( 10 ) 2071 - 2075 2008年11月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：International Journal of Modern Physics E
The cluster structures of the excited states in 11B and 13C were discussed by measuring the isoscalar monopole strengths in the inelastic α scattering at Eα = 388 MeV. It was found that the $1/2-2$, $1/2-3$, and $1/2-4$ states in 13C are candidates for the α cluster states with a 3α + n molecular configuration. © 2008 World Scientific Publishing Company.
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Kiselev A., Ladygin V., Uesaka T., Vasiliev T., Janek M., Saito T., Hatano M., Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
European Physical Journal: Special Topics 162 ( 1 ) 143 - 146 2008年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal: Special Topics
The preliminary results on the tensor T20 analyzing power for the 12C(d→,p)13C* reaction with the excitation of 13C levels and the d(d→, p) X reaction at the energies Td = 140, 200 and 270 MeV at the emission angle θcm = 0° are presented. The data on the tensor Ayy and vector Ay analyzing powers for the 12C(d→, p)13C* reaction at the energy Td = 270 MeV in the angular range from 4° to 18° in the laboratory are also obtained. © EDP Sciences and Springer 2008.
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Kurilkin A., Saito T., Ladygin V., Uesaka T., Vasiliev T., Janek M., Hatano M., Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
European Physical Journal: Special Topics 162 ( 1 ) 133 - 136 2008年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal: Special Topics
The data on the vector Ay and tensor Ayy, Axx, Axz analyzing powers for the d→ d → 3Hp reaction have been obtained at the energy of the initial deuteron of 200 MeV in the angular range of 0-95 degrees in the c.m.s. The calculations performed within one-nucleon exchange model with the use of the standard three-nucleon bound state wave functions fail to reproduce the data on the tensor analyzing powers. © EDP Sciences and Springer 2008.
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Janek M., Ladygin V., Azhgirey L., Uesaka T., Gurchin Y., Hatano M., Itoh K., Isupov A., Karachuk J., Kato H., Kawabata T., Krasnov V., Khrenov A., Kiselev A., Kizka V., Kliman J., Kurilkin A., Kurilkin P., Ladygina N., Livanov A., Maeda Y., Malakhov A., Matousek V., Morhach M., Nishikawa J., Pilipenko Y., Ohnishi T., Okamura H., Piyadin S., Reznikov S., Saito T., Sakaguchi S., Sakai H., Sakamoto N., Sakoda S., Sasamoto Y., Satou Y., Sekiguchi K., Suda K., Shikhalev M., Tamii A., Turzo I., Uchigashima N., Vasiliev T., Yako K., Zolin L.
Physics of Atomic Nuclei 71 ( 9 ) 1495 - 1501 2008年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Atomic Nuclei
The investigation of the spin structure of d, 3H, and 3He has been performed at the RIKEN acceleration research facility and VBLHE. Vector A y and tensor A yy, A xx, A xz analyzing powers for d→d → 3Hen and d→d → 3Hp are presented at 270 MeV. Themirror channels (3Hen and 3Hp) are comparedto each other in order to find possible manifestation of charge-symmetry breaking. The preliminary results on the polarization observables for d→d → 3Hp at 200MeV are also presented. The obtained data are compared with one-nucleon-exchange calculations.As a byproduct, d →d → pX and d→12C → pX breakup reactions are investigated at 140, 200, and 270MeV. The experimental data on d→p elastic scattering were obtained at 270, 880, and 2000 MeV at the Nuclotron. The polarization of the deuteron beam was measured at 270 MeV at the internal target station. The preliminary data on the vector A y and tensor A yy, A xx analyzing powers for the d→p elastic scattering at 880 MeV are presented. The calculations on A y, A yy, and A xx analyzing powers for the d→ p elastic scattering at 880 MeV were performed in the framework of the multiple-scattering model. © 2008 Pleiades Publishing, Ltd.
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22aSD-11 E_d=26MeV H(d,pp)nにおけるoff-plane starの断面積測定(22aSD 核構造・基礎物理・軽イオン,実験核物理領域)
下田 広己, 前田 幸重, 黒板 翔, 末田 雄大, 江口 祐一郎, 八嶋 恵介, 野中 敦, 藤田 規之, 畑中 吉治, 岡村 弘之, 民井 淳, 石川 大貴, 相良 建至, 須田 健嗣, 為重 雄司
日本物理学会講演概要集 63 ( 2 ) 2008年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：一般社団法人日本物理学会
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The RCNP (n,p) facility 査読あり
K. Yako, H. Sakai, M.B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, Y. Maeda, K. Nagayama, H. Okamura, K. Sekiguchi, Y. Shimizu, K. Suda, A. Tamii, T. Wakasa
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 592 ( 1-2 ) 88 - 99 2008年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Analyzing powers in the dd →<sup>3</sup>Hen (<sup>3</sup>Hp) reactions at intermediate energies 査読あり
Ladygin V.P., Uesaka T., Saito T., Janek M., Kiselev A.S., Kurilkin A.K., Vasiliev T.A., Hatano M., Isupov A.Y., Kato H., Ladygina N.B., Maeda Y., Malakhov A.I., Nishikawa J., Ohnishi T., Okamura H., Reznikov S.G., Sakai H., Sakoda S., Sakamoto N., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
AIP Conference Proceedings 1011 235 - 240 2008年5月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス） 出版者・発行元：AIP Conference Proceedings
Data for the deuteron analyzing powers in the dd → HeK( Hp) reactions obtained at 140-270 MeV are discussed. The observed negative sign of the tensor analyzing powers A , A and A at small angles clearly demonstrate the sensitivity to the ratio of the D and S state components of the He wave function. The behavior of the tensor analyzing powers at backward angles is sensitive to the short-range spin structure of the deuteron. However, the one-nucleon exchange calculations using standard He and deuteron wave functions fail to reproduce the strong variation of the tensor analyzing powers as a function of angle in the cms. Sensitivity to relativistic effects is also discussed. © 2008 American Institute of Physics. 3 3 3 3 yy xx xz
DOI： 10.1063/1.2932293
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Remaining problems in the low-energy pd breakup reaction 査読あり
Sagara K., Sueta T., Sugimoto T., Shimoda H., Kuroita S., Maeda Y.
AIP Conference Proceedings 1011 93 - 97 2008年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
Space star anomalies in nd and pd breakup reactions are peculiar phenomena, different from other discrepancies in the 3N systems. Recently progress on the pd star anomaly has been made both in experiment and in theoretical calculations. We have started systematic experiments on the pd star, and some preliminary data are presented. © 2008 American Institute of Physics.
DOI： 10.1063/1.2932312
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Measurements of the<sup>2</sup>H(p→, 2p)n breakup reaction at 250 MeV 査読あり
Maeda Y., Dozono M., Hatanaka K., Ihara E., Kawabata T., Matsubara H., Noji S., Sagara K., Sakaguchi S., Sakai H., Sasamoto Y., Sasano M., Sekiguchi K., Shimizu Y., Suda K., Takechi M., Tameshige Y., Tamii A., Uesaka T., Wakasa T., Yako K.
AIP Conference Proceedings 1011 183 - 187 2008年5月
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
Recently it was found that, the differential cross sections of elastic Nd scattering below 150 MeV can be well reproduced by incorporating a 3NF in Faddeev calculations based on modern nucleon-nucleon (NN) interactions. On the other hand, the differential cross sections for nd and pd at 250 MeV show large discrepancies between the data and the Faddeev calculations with a 3NF. This indicates the existence of the missing features of the three nucleon force in this energy region. For the next step in the 3NF study, we have measured the vector analyzing power A and the differential cross sections for the H(p̄, pp)n breakup reaction at 250 MeV. The experiment, was carried out by detecting two protons in the final state with using the double-armed spectrometer Grand Raiden (GR) and the Large Acceptance Spectrometer (LAS) at the Research Center for Nuclear Physics (RCNP). The data was compared with the results of Faddeev calculations with and without a 3NF. © 2008 American Institute of Physics. y 2
DOI： 10.1063/1.2932286
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Cluster states in <sup>11</sup>B and <sup>13</sup>C
Kawabata T., Sasamoto Y., Fujiwara M., Hashimoto H., Hatanaka K., Itoh K., Itoh M., Kanada-En'Yo Y., Kawase K., Maeda Y., Matsubara H., Nakanishi K., Sakaguchi S., Shimizu Y., Suda K., Tameshige Y., Tamii A., Uchida M., Uesaka T., Yoshida H.
Journal of Physics: Conference Series 111 ( 1 ) 2008年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics: Conference Series
The cluster structures of the excited states in 11B and 13C were discussed by measuring the isoscalar monopole strengths in the inelastic α scattering at Eα 388 MeV. It was found that the 1/22-, 1/23-, and 1/2 4- states in 13C are candidates for the α cluster states with a 3α + n molecular configuration. © 2008 IOP Publishing Ltd.
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Kurilkin P., Suda K., Uesaka T., Ladygin V., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Kliman J., Krasnov V., Ladygina N., Livanov A., Maeda Y., Malakhov A., Matoucek V., Morhac M., Reznikov S., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M., Turzo I., Vasiliev T., Witala H.
European Physical Journal: Special Topics 162 ( 1 ) 137 - 141 2008年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal: Special Topics
The preliminary results on the angular distributions of the vector Ay and tensor Ayy, Axx analyzing powers in dp elastic scattering at Td = 880 MeV are presented. A region of center-of-mass system angles from 60° to 140° is covered. The experimental data are compared with the preliminary calculations obtained within framework of different theoretical approaches. The experiment has been performed at the Internal Target Station at Nuclotron within the framework of the program on the study of light nuclei spin structure proposed at JINR (Russia) and RIBF (Japan). © EDP Sciences and Springer 2008.
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Recent results from polarization experiments at the LHEP-JINR Accelerator 査読あり
Ladygin V.P., Azhgirey L.S., Uesaka T., Gurchin Y.V., Isupov A.Y., Itoh K., Janek M., Karachuk J.T., Kawabata T., Krasnov V.A., Khrenov A.N., Kiselev A.S., Kizka V.A., Kurilkin A.K., Kurilkin P.K., Livanov A.N., Ladygina N.B., Maeda Y., Malakhov A.I., Piyadin S.M., Reznikov S.G., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M.A., Suda K., Vasiliev T.A., Witala H.
AIP Conference Proceedings 1056 420 - 427 2008年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
The review of recent results from polarization experiments performed at LHEP-JINR Accelerator Complex in a GeV range is given. The current status of the spin program at Nuclotron as well as its further continuation with new high intensity polarized deuterons ion source is discussed. © American Institute of Physics.
DOI： 10.1063/1.3013074
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Suda K., Uesakat T., Ladygin V.P., Kurilkin P.K., Gurchin Y.V., Isupov A.Y., Itohi K., Janek M., Karachuk J.T., Kawabata T., Khrenov A.N., Kiselev A.S., Kizka V.A., Kliman J., Krasnov V.A., Ladygina N.B., Livanov A.N., Maeda Y., Malakhov A.I., Matoucek V., Morhac M., Piyadin S.M., Reznikov S.G., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Shikhalev M.A., Turzo I., Vasiliev T.A., Witała H.
AIP Conference Proceedings 1011 241 - 246 2008年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
Measurements of analyzing powers A , A , and A for d-p elastic scattering were performed at E =0.88 and 2.0 GeV using a high-energy deuteron beam polarimeter at the Internal Target Station of the Nuclotron at JINR. The analyzing power data at 0.88 GeV are compared with several theoretical calculations. © 2008 American Institute of Physics. y yy xx d
DOI： 10.1063/1.2932295
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Analyzing power measurement for elastic scattering of <sup>6</sup>He on polarized protons
Sakaguchi S., Uesaka T., Wakui T., Kawabata T., Aoi N., Hashimoto Y., Ichikawa M., Ichikawa Y., Itoh K., Itoh M., Iwasaki H., Kawahara T., Kuboki H., Maeda Y., Matsuo R., Nakao T., Okamura H., Sakai H., Sakamoto N., Sasamoto Y., Sasano M., Satou Y., Sekiguchi K., Shinohara M., Suda K., Suzuki D., Takahashi Y., Tamii A., Yako K., Yamaguchi M.
AIP Conference Proceedings 915 833 - 836 2007年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
Vector analyzing power was measured for the proton elastic scattering on 6He at 71 MeV/u. We applied a solid polarized proton target, which was operated in a low magnetic field of 88 mT and at high temperature of 100 K, to a radioactive-isotope beam experiment. Low energy recoil protons were successfully detected due to the modest operation conditions of the target. Selection of p+6He elastic scattering events was clearly carried out with detected protons. Absolute values of the analyzing power were determined for the first time. © 2007 American Institute of Physics.
DOI： 10.1063/1.2750906
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Measurement of A<inf>y</inf> for the pd breakup reaction at 250 MeV
Maeda Y., Uesaka T., Kawabata T., Suda K., Sasamoto Y., Sakaguchi S., Sakai H., Yako K., Sasano M., Noji S., Hatanaka K., Tamii A., Shimizu Y., Takechi M., Tameshige Y., Matsubara H., Sagara K., Wakasa T., Dozono M., Ihara E., Sekiguchi K.
AIP Conference Proceedings 915 781 - 784 2007年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
From the recent studies, it has been found that the differential cross sections of the elastic Nd scattering at the energy below 150 MeV can be well reproduced by incorporating the 3NF in the Faddeev calculation based on modern nucleon-nucleon (NN) interactions. On the other hand, the differential cross sections of nd and pd at 250 MeV show large discrepancies between the data and the Faddeev calculations with 3NF. It indicates the presence of the missing features of the three nucleon system at this energy region. For the next step of the 3NF study, we measured the vector analyzing power Ay and the differential cross sections for the 2H(p, pp)n breakup reaction at 250 MeV. The experiment was carried out by detecting two protons in the final state with using the double-armed spectrometer Grand Raiden (GR) and Large Acceptance Spectrometer (LAS) at Research Center for Nuclear Physics (RCNP). These data provide important information on the 3NF effects and make a discrimination between 3NF models. © 2007 American Institute of Physics.
DOI： 10.1063/1.2750894
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Measurement of cross section and various spin observables in the pd elastic scattering at 392 MeV
Tamii A., Dozono M., Fujita K., Hatanaka K., Ihara E., Kaneda T., Kuboki H., Maeda Y., Matsubara H., Ohta T., Okamura H., Sakai H., Sakemi Y., Satou Y., Sekiguchi K., Suda K., Takechi M., Tameshige Y., Tanabe H., Uchigashima N., Uesaka T., Wakasa T., Yako K.
AIP Conference Proceedings 915 765 - 768 2007年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
The cross sections and spin observables of the pd elastic scattering have been measured at 392 MeV. The results are compared with the prediction of Faddeev calculations with and without including a three nucleon force. © 2007 American Institute of Physics.
DOI： 10.1063/1.2750890
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Differential cross section and analyzing power measurements for \vec{n}d elastic scattering at 248 MeV 査読あり
Y. Maeda, H. Sakai, K. Fujita, M. B. Greenfield, K. Hatanaka, M. Hatano, J. Kamiya, T. Kawabata, H. Kuboki, H. Okamura, J. Rapaport, T. Saito, Y. Sakemi, M. Sasano, K. Sekiguchi, Y. Shimizu, K. Suda, Y. Tameshige, A. Tamii, T. Wakasa, K. Yako, J. Blomgren, P. Mermod, A. Ohrn, M. Osterlund, H. Witala, A. Deltuva, A. C. Fonseca, P. U. Sauer, W. Glockle, J. Golak, H. Kamada, A. Nogga, R. Skibinski
Physical Review C 76 ( 1 ) 014004 - 014016 2007年7月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Janek M., Saito T., Ladygin V., Uesaka T., Hatano M., Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakoda S., Sakamoto N., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Vasiliev T., Yako K.
European Physical Journal A 33 ( 1 ) 39 - 46 2007年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal A
The data on the tensor Ayy, Axx, Axz and vector Ay analyzing powers in the dd → 3Hen obtained at T d = 270 MeV in the angular range 0° - 110 ° in the c.m. are presented. The observed negative sign of the tensor analyzing powers Ayy, Axx and Axz at small angles clearly demonstrate the sensitivity to the ratio of the D - and S -wave component of the 3He wave function. However, the one-nucleon exchange calculations by using the standard 3He wave functions have failed to reproduce the strong variation of the tensor analyzing powers as a function of the angle in the c.m. © 2007 Società Italiana di Fisica and Springer-Verlag.
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Measurement of the <sup>2</sup>H(d,pn) reaction at 0 degrees at 270 MeV
Miki K., Sakai H., Itoh K., Kawabata K., Kuboki H., Maeda Y., Noji S., Sakaguchi S., Sakamoto N., Sasamoto Y., Sasano M., Satou Y., Sekiguchi K., Suda K., Takahashi Y., Uesaka T., Yako K.
Nuclear Physics A 790 ( 1-4 ) 442c - 445c 2007年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
The energy spectrum of the 2H(d,pn) reaction at 0° at 270 MeV was obtained at RIKEN Accelerator Research Facility. The spectrum in the kinematical region where the resulting pn pair has the relative energy smaller than ∼2 MeV was analyzed by plane-wave impulse approximation calculations assuming the configurations of final state interaction with s-wave. © 2007 Elsevier B.V. All rights reserved.
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Measurements of the over(n, →) d scattering at 250 MeV and three-nucleon forces
Maeda Y., Sakai H., Fujita K., Hatano M., Kamiya J., Kawabata T., Kuboki H., Hatanaka K., Okamura H., Saito T., Sakemi Y., Sasano M., Sekiguchi K., Shimizu Y., Suda K., Tameshige Y., Tamii A., Wakasa T., Yako K., Greenfield M., Kamada H., Witała H.
Nuclear Physics A 790 ( 1-4 ) 430c - 433c 2007年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
The differential cross sections and the vector analyzing powers for the nd elastic scattering at En = 250 MeV have been measured for the study of the three-nucleon force (3NF) effects in the Coulomb-free system. To cover a wide angular region, the experiments were performed by using two different methods at the (n, p) facility and at the NTOF facility which constructed at the Research Center for Nuclear Physics (RCNP). The results were compared with theoretical predictions of the Faddeev calculations based on the modern nucleon-nucleon (NN) forces with the three-nucleon force (3NF). The inclusion of 3NFs leads to a good description of the cross section except for the backward angles. The results were also compared with the theoretical predictions with relativistic corrections. The direct data-to-data comparison of the cross sections of the nd and pd was performed. © 2007 Elsevier B.V. All rights reserved.
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Sekiguchi K., Sakai H., Sakamoto N., Kuboki H., Sasano M., Takahashi Y., Yako K., Kawabata T., Maeda Y., Sakaguchi S., Sasamoto Y., Suda K., Uesaka T., Okamura H., Itoh K., Wakasa T.
Nuclear Physics A 790 ( 1-4 ) 450c - 453c 2007年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
Measurements of deuteron-proton breakup reactions at 135 MeV/A have been made at RIKEN Accelerator Research Facility, focusing on the specific coplanar configurations. The obtained results are compared with the Faddeev calculations based on the modern nucleon-nucleon forces together with the Tucson-Melbourne99, and UrbanaIX three nucleon forces. © 2007 Elsevier B.V. All rights reserved.
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Study of three-nucleon force effects in \vec{p}+d break-up with BINA 査読あり
H. Mardanpour, H.R. Amir-Ahmadi, R. Benard, A. Biegun, M. Eslami-Kalantari, N. Kalantar-Nayestanaki, M. Kis, St. Kistryn, A. Kozela, H. Kuboki, Y. Maeda, M. Mahjour-Shafiei, J.G. Messchendorp, K. Miki, S. Noji, A. Ramazani, H. Sakai, M. Sasano, K. Sekiguchi, E. Stephan, R. Sworst, Y. Takahashi, K. Yako
Nuclear Physics A 790 ( 1-4 ) 426c - 429c 2007年6月
記述言語：英語 掲載種別：研究論文（国際会議プロシーディングス）
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Sasano M., Sakai H., Yako K., Kuboki H., Miki K., Noji S., Wakasa T., Dozono M., Sekiguchi K., Uesaka T., Kawabata T., Maeda Y., Sakaguchi S., Sasamoto Y., Suda K., Itoh K., Hatanaka K., Okamura H., Tamii A., Muto K., Frekers D., Greenfield M.
Nuclear Physics A 788 ( 1-4 ) 76 - 81 2007年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
The 116Cd(p,n) experiment at 300 MeV has been performed for deducing the Gamow-Teller (GT) transition strengths B(GT-) in 116In. For the transition to the ground state, the B(GT-) value of 0.26 ± 0.02 is obtained. From this B(GT-) value and the B(GT+) value by a beta-decay experiment, the contribution of the intermediate ground state of 116In to the nuclear matrix element is deduced to be 0.070 ± 0.003. The B(GT-) value obtained herein is a factor of 8 less than that obtained from a previous (3He,t) measurement. This discrepancy, as well as differences in the distribution of low energy GT strength, and the width and peak energy of the GT giant resonance may be explained if the target used in the (3He,t) measurement is a Cd target with natural abundance. © 2007 Elsevier B.V. All rights reserved.
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Suda K., Okamura H., Uesaka T., Nishikawa J., Kumasaka H., Suzuki R., Sakai H., Tamii A., Ohnishi T., Sekiguchi K., Yako K., Sakoda S., Kato H., Hatano M., Maeda Y., Saito T., Ishida T., Sakamoto N., Satou Y., Hatanaka K., Wakasa T., Kamiya J.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 572 ( 2 ) 745 - 753 2007年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
The 12C(over(d, ⇒), α)10B *[2+] reaction at 0{ring operator} has been proposed as a new tool to calibrate the deuteron beam polarization at intermediate energies. The absolute values of the deuteron polarizations were extracted for the first time by using this reaction at 270 and 140 MeV deuteron energies. The analyzing powers for the over(d, ⇒)-p elastic scattering, which is used as a secondary reaction of a polarimetry, were determined by the new method. © 2006 Elsevier B.V. All rights reserved.
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Precision measurement of vector and tensor analyzing powers in elastic deuteron-proton scattering
Mardanpour H., Amir-Ahmadi H., Deltuva A., Itoh K., Kalantar-Nayestanaki N., Kawabata T., Kuboki H., Maeda Y., Messchendorp J., Sakaguchi S., Sakai H., Sakamoto N., Sasamoto Y., Sasano M., Sekiguchi K., Suda K., Takahashi Y., Uesaka T., Witała H., Yako K.
European Physical Journal A 31 ( 3 ) 383 - 391 2007年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal A
High-precision vector and tensor analyzing powers of elastic deuteron-proton (d + p) scattering have been measured at intermediate energies to investigate effects of three-nucleon forces. Angular distributions in the range of 70°-120° in the center-of mass frame for incident-deuteron energies Edlab = 130 and 180 MeV were obtained using the RIKEN facility. The beam polarization was unambiguously determined by measuring the 12C(d, α)10B(2+) reaction at 0°. Results of the measurements are compared with state-of-the-art three-nucleon calculations. The present modeling of nucleon-nucleon forces and its extension to the three-nucleon system is not sufficient to describe the high-precision data consistently and requires, therefore, further investigation. © 2007 Società Italiana di Fisica and Springer-Verlag.
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Development of deuteron polarimeter at internal target station of nuclotron
Suda K., Uesaka T., Ladygin V., Maeda Y., Kurilkin P., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Kliman J., Krasnov V., Livanov A., Malakov A., Matoucek V., Morhac M., Piyadin S., Reznikov S., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Turzo I., Vasiliev T.
AIP Conference Proceedings 915 920 - 923 2007年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
A high-energy deuteron beam polarimeter based on the d-p elastic scattering at backward angles has been constructed at Internal Target Station of Nuclotron at JINR. Calibration measurement of the analyzing powers Ay, A yy, and Axx with polarized deuteron beams at 0.88 and 2.0 GeV was performed. © 2007 American Institute of Physics.
DOI： 10.1063/1.2750926
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Spin Correlations of Strongly Interacting Massive Fermion Pairs as a Test of Bell's Inequality 査読あり
H. Sakai, T. Saito, T. Ikeda, K. Itoh, T. Kawabata, H. Kuboki, Y. Maeda, N. Matsui, C. Rangacharyulu, M. Sasano, Y. Satou, K. Sekiguchi, K. Suda, A. Tamii, T. Uesaka, K. Yako
Physical Review Letter 97 ( 15 ) 150405 - 150408 2006年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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95 MeV neutron scattering on hydrogen, deuterium, carbon, and oxygen 査読あり
P. Mermod, J. Blomgren, C. Johansson, A. ?hrn, M. ?sterlund, S. Pomp, B. Bergenwall, J. Klug, L. Nilsson, N. Olsson, U. Tippawan, P. Nadel-Turonski, O. Jonsson, A. Prokofiev, P.-U. Renberg, Y. Maeda, H. Sakai, A. Tamii, K. Amos, R. Crespo, A. Moro
Physical Review C 74 ( 5 ) 054002 - 054024 2006年11月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Cluster states in <sup>13</sup>C
Sasamoto Y., Kawabata T., Uesaka T., Suda K., Maeda Y., Sakaguchi S., Itoh K., Hatanaka K., Fujiwara M., Tamii A., Shimizu Y., Nakanishi K., Kawase K., Hashimoto H., Tameshige Y., Matsubara H., Itoh M., Yoshida H., Uchida M.
Modern Physics Letters A 21 ( 31-33 ) 2393 - 2401 2006年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
Cross sections for 13C(α, α′) reactions at Eα = 400 MeV have been measured to obtain the monopole and quadrupole transition strengths. The excitation strengths are compared with the shell-model predictions. It is suggested that the large monopole strengths observed for the 1/22- and 1/23- states in 13C are attributed to the cluster structure of those states. © World Scientific Publishing Company.
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Uesaka T., Ladygin V., Azhgirey L., Gurchin Y., Isupov A., Itoh K., Janek M., Karachuk J., Kawabata T., Khrenov A., Kiselev A., Kizka V., Kliman J., Krasnov V., Livanov A., Maeda Y., Malakhov A., Matoucek V., Morhac M., Nedev S., Rangelov S., Reznikov S., Sakaguchi S., Sakai H., Sasamoto Y., Sekiguchi K., Suda K., Turzo I., Vasiliev T., Wakui T.
Physics of Particles and Nuclei Letters 3 ( 5 ) 305 - 311 2006年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Particles and Nuclei Letters
A new high-energy beam polarimeter is proposed for Nuclotron, which uses the Internal Target Station (ITS). This polarimeter based on a measurement of asymmetry for the d-p elastic scattering will allow one to measure simultaneously both vector and tensor components of deuteron beam polarization. For this purpose an analyzing powers measurement for the d-p elastic scattering at energies Td = 0.88-2 GeV is proposed. The precise measurements of the deuteron analyzing powers over the energy range Td = 300-2000 MeV can give an irreplaceable clue to the study of the spin dependence of three nucleon forces. © Pleiades Publishing, Inc. 2006.
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Search for supernarrow dibaryons via the pd→ppX and pd→pdX reactions 査読あり
H. Kuboki, A. Tamii, K. Fujita, K. Hatanaka, M. Hatano, J. Kamiya, T. Kudoh, Y. Maeda, K. Sagara, T. Saito, H. Sakai, Y. Sakemi, M. Sasano, K. Sekiguchi, Y. Shimizu, S. Shimomoto, M. Shiota, Y. Tameshige, T. Uesaka, T. Wakasa, K. Yako
Physical Review C 74 ( 3 ) 035203 - 035208 2006年9月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Ladygin V., Uesaka T., Saito T., Hatano M., Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
Physics of Atomic Nuclei 69 ( 8 ) 1271 - 1278 2006年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics of Atomic Nuclei
RIKEN Accelerator Research Facility data on the tensor analyzing power T 20 of the dd → 3Hen and dd → 3Hp reactions at zero angle for deuteron kinetic energies of 140, 200, and 270 MeV are reported. The observed positive sign of T 20 clearly demonstrates the sensitivity to the D/S-wave ratio in the 3He and 3H wave functions in the energy range of the experiment. Data on T 20 for the 3Hen channel are in agreement with those for the 3Hp channel within the experimental errors. © Pleiades Publishing, Inc., 2006.
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Evidence of three-body force effects in neutron-deuteron scattering at 95 MeV 査読あり
P. Mermod, J. Blomgren, A. Hildebrand, C. Johansson, J. Klug, M. ?sterlund, S. Pomp, U. Tippawan, B. Bergenwall, L. Nilsson, N. Olsson, O. Jonsson, A. Prokofiev, P.-U. Renberg, P. Nadel-Turonski, Y. Maeda, H. Sakai, A. Tamii
Physical Review C 72 ( 6 ) 061002 - 061006 2005年12月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Resolving the discrepancy of 135 MeV pd elastic scattering cross sections and relativistic effects
Sekiguchi K., Sakai H., Witała H., Glöckle W., Golak J., Hatanaka K., Hatano M., Itoh K., Kamada H., Kuboki H., Maeda Y., Nogga A., Okamura H., Saito T., Sakamoto N., Sakemi Y., Sasano M., Shimizu Y., Suda K., Tamii A., Uesaka T., Wakasa T., Yako K.
Physical Review Letters 95 ( 16 ) 2005年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
Three precise measurements for elastic pd scattering at 135MeV/A have been performed with the three different experimental setups. The cross sections are described well by the theoretical predictions based on modern nucleon-nucleon forces combined with three-nucleon forces. Relativistic Faddeev calculations show that relativistic effects are restricted to backward angles. This result supports the two measurements recently reported by RIKEN and contradicts the KVI data. © 2005 The American Physical Society.
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First experiment of <sup>6</sup>He with a polarized proton target
Hatano M., Sakai H., Wakui T., Uesaka T., Aoi N., Ichikawa Y., Ikeda T., Itoh K., Iwasaki H., Kawabata T., Kuboki H., Maeda Y., Matsui N., Ohnishi T., Onishi T., Saito T., Sakamoto N., Sasano M., Satou Y., Sekiguchi K., Suda K., Tamii A., Yanagisawa Y., Yako K.
European Physical Journal A 25 ( SUPPL. 1 ) 255 - 258 2005年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal A
We have constructed a new type of spin polarized solid proton target which can be operated under a low magnetic field of 0.08T and a high temperature of 100K. We have measured for the first time the polarization asymmetry of an unstable beam of 6He at an energy of 71MeV/u. Optical potential analyses have been carried out. © Società Italiana di Fisica / Springer-Verlag 2005.
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Performance of the neutron polarimeter NPOL3 for high resolution measurements
Wakasa T., Hagihara Y., Sasano M., Asaji S., Fujita K., Hatanaka K., Ishida T., Kawabata T., Kuboki H., Maeda Y., Noro T., Saito T., Sakai H., Sakemi Y., Sekiguchi K., Shimizu Y., Tamii A., Tameshige Y., Yako K.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 547 ( 2-3 ) 569 - 582 2005年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
We describe the neutron polarimeter NPOL3 for the measurement of polarization transfer observables Dij with a typical high resolution of ∼300 keV at Tn≃200MeV. The NPOL3 system consists of three planes of neutron detectors. The first two planes for neutron polarization analysis are made of 20 sets of one-dimensional position-sensitive plastic scintillation counters with a size of 100 cm × 10 cm × 5 cm, and they cover the area of 100×100cm2. The last plane for detecting doubly scattered neutrons or recoiled protons is made of the two-dimensional position-sensitive liquid scintillation counter with a size of 100cm×100cm×10cm. The effective analyzing powers Ay;eff and double scattering efficiencies εD.S. were measured by using the three kinds of polarized neutrons from the 2H(p→,n→)pp, 6Li(p→,n→)6Be(g.s.), and 12C(p→,n→) 12N(g.s.) reactions at Tp=198MeV. The performance of NPOL3 defined as εD.S.(Ay;eff)2 are similar to that of the Indiana Neutron POLarimeter by taking into account for the counter configuration difference between these two neutron polarimeters. © 2005 Elsevier B.V.
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Determination of the Gamow-Teller quenching factor from charge exchange reactions on <sup>90</sup>Zr
Yako K., Sakai H., Greenfield M., Hatanaka K., Hatano M., Kamiya J., Kato H., Kitamura Y., Maeda Y., Morris C., Okamura H., Rapaport J., Saito T., Sakemi Y., Sekiguchi K., Shimizu Y., Suda K., Tamii A., Uchigashima N., Wakasa T.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 615 ( 3-4 ) 193 - 199 2005年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Double differential cross sections between 0°-12°were measured for the 90Zr(n, p) reaction at 293 MeV over a wide excitation energy range of 0-70 MeV. A multipole decomposition technique was applied to the present data as well as the previously obtained 90Zr(p, n) data to extract the Gamow-Teller (GT) component from the continuum. The GT quenching factor Q was derived by using the obtained total GT strengths. The result is Q=0.88±0.06, not including an overall normalization uncertainty in the GT unit cross section of 16%. © 2005 Elsevier B.V. All rights reserved.
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Investigation of three-body force effects in neutron-deuteron scattering at 95 MeV
Mermod P., Blomgren J., Bergenwall B., Hildebrand A., Johansson C., Klug J., Nilsson L., Olsson N., Österlund M., Pomp S., Tippawan U., Jonsson O., Prokofiev A., Renberg P., Nadel-Turonski P., Maeda Y., Sakai H., Tamii A.
AIP Conference Proceedings 769 688 - 691 2005年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
We have measured the neutron-deuteron (nd) elastic-scattering differential cross section at 95 MeV incident neutron energy, using both the Medley and the SCANDAL setups at TSL in Uppsala. The full angular distribution was covered by detecting recoil deuterons from thin CD2 targets, and the result was normalized to the neutron-proton (np) cross section. Recent theories predict that three-nucleon (3N) force effects, if present, would affect the cross section in the minimum region by about 30%. The results are compared with theoretical calculations and are well described if 3N forces are included. © 2005 American Institute of Physics.
DOI： 10.1063/1.1945102
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Experimental test of Bell's inequality via the <sup>1</sup>H(d, <sup>2</sup>He)n reaction
Saito T., Sakai H., Ikeda T., Itoh K., Kawabata T., Kuboki H., Maeda Y., Matsui N., Sasano M., Satou Y., Sekiguchi K., Suda K., Tamii A., Uesaka T., Yako K.
AIP Conference Proceedings 768 62 - 64 2005年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
To test Bell's inequality, measurements of spin correlations between two protons in the spin singlet state have been performed. Proton pairs in the singlet state were produced by the 1H(d,2He)n reaction at Ed = 270 MeV. © 2005 American Institute of Physics.
DOI： 10.1063/1.1932870
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Janek M., Saito T., Ladygin V., Hatano M., Isupov A., Kato H., Ladygina N., Malakhov A., Maeda Y., Nedev S., Nishikawa J., Okamura H., Onishi T., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Uchigashima N., Uesaka T., Tamii A., Vasiliev T., Yako K.
International Journal of Modern Physics A 20 ( 2-3 ) 646 - 648 2005年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：International Journal of Modern Physics A
The experiment with polarized deuteron beam was performed at energies 140, 200 and 270 MeV at RIKEN, Japan, in December 2000. The high-momentum structure of the 3He, 3H and deuteron was investigated. For this purpose the angular dependence of the tensor and vector analyzing powers were measured for the reactions d + d → 3H + p and d + d → 3He + n. In this report the results on the tensor Axx, Ayy and vector Ay analyzing powers at 270 MeV are presented. © World Scientific Publishing Company.
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<sup>6</sup>He scattering with polarized proton target
Hatano M., Sakai H., Wakui T., Uesaka T., Aoi N., Ichikawa Y., Ikeda T., Itoh K., Iwasaki H., Kawabata T., Kuboki H., Maeda Y., Matsui N., Ohnishi T., Onishi T., Saito T., Sakamoto N., Sasano M., Satou Y., Sekiguchi K., Suda K., Tamii A., Yanagisawa Y., Yako K.
AIP Conference Proceedings 764 360 - 364 2005年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：AIP Conference Proceedings
A new type of the spin polarized solid proton target has been constructed which can be operated under a low magnetic field of 0.08 T and a high temperature of 100 K. First polarization asymmetry measurement with an unstable beam of 6He with an energy of 71 MeV/u has been successfully carried out. © 2005 American Institute of Physics.
DOI： 10.1063/1.1905336
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Determination of Gamow-Teller unit cross sections of the (p, n) reaction at 200 and 300 MeV
Sasano M., Sakai H., Yako K., Saito T., Kuboki H., Takahasi Y., Wakasa T., Asaji S., Hagihara Y., Hatanaka K., Tamii A., Sakemi Y., Tameshige Y., Shimizu Y., Fujita K., Fujita Y., Okamura H., Sekiguchi K., Maeda Y., Kawabata T., Greenfield M.
Journal of Physics: Conference Series 20 ( 1 ) 181 - 182 2005年1月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Journal of Physics: Conference Series
The Gamow-Teller (GT) unit cross section, σ̌GT, is an essential quantity to deduce the GT transition strength, B(GT), from the (p, n) 0°cross section. (p, n) measurements at 200 and 300 MeV were performed using the Neutron Time-of-Flight (NTOF) facility at the Research Center for Nuclear Physics (RCNP). The σ̌GT values were determined, for the first time, for several nuclei in the region of A > 50 at E p = 200 and 300 MeV. A significant difference between the B(GT) values obtained by (p, n) and (3He, t) measurements was found. © 2005 IOP Publishing Ltd.
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Ladygin V., Uesaka T., Saito T., Hatano M., Isupov A., Kato H., Ladygina N., Maeda Y., Malakhov A., Nishikawa J., Ohnishi T., Okamura H., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Tamii A., Uchigashima N., Yako K.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 598 ( 1-2 ) 47 - 54 2004年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
The data on the tensor analyzing power T 20 in the dd → 3He n and dd → 3H p reactions obtained at 140-270 and 140-200 MeV of the deuteron kinetic energy, respectively, and at zero degree were measured at RIKEN Accelerator Research Facility. The observed positive sign of T 20 clearly demonstrates the sensitivity to the D/S wave ratios in the 3He and 3H in the energy domain of the measurements. The T 20 data for the 3He-n and 3H-p channels are in agreement within experimental accuracy. © 2004 Elsevier B.V. All rights reserved.
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Search for three-body force effects in neutron-deuteron scattering at 95 MeV
Mermod P., Blomgren J., Bergenwall B., Hildebrand A., Johansson C., Klug J., Nilsson L., Olsson N., Österlund M., Pomp S., Tippawan U., Jonsson O., Prokofiev A., Renberg P., Nadel-Turonski P., Maeda Y., Sakai H., Tamii A.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 597 ( 3-4 ) 243 - 248 2004年9月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
The neutron-deuteron (nd) elastic scattering differential cross section has been measured at 95 MeV incident neutron energy. The neutron-proton (np) differential cross section has also been measured for normalization purposes. An inclusion of three-nucleon forces gives a considerable improvement in the theoretical description of the nd data in the angular region of the cross-section minimum. © 2004 Elsevier B.V. All rights reserved.
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Recent results on spin structure of light nuclei from the R308n experiment
Janek M., Saito T., Ladygin V., Hatano M., Isupov A., Kato H., Ladygina N., Malakhov A., Maeda Y., Nedev S., Nishikawa J., Okamura H., Onishi T., Reznikov S., Sakai H., Sakamoto N., Sakoda S., Satou Y., Sekiguchi K., Suda K., Uchigashima N., Uesaka T., Tamii A., Vasiliev T., Yako K.
Acta Physica Slovaca 54 ( 4 ) 367 - 373 2004年8月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Acta Physica Slovaca
The high-momentum structure of the 3 He, 3 H and deuteron in the experiment with polarized deuteron beam performed at E d =270 MeV at RIKEN, Japan in December 2000, was investigated. For this purpose the angular dependence of the tensor and vector analyzing powers were measured for the reactions d + d→ 3 H + p and d + d→ 3 He + n. In this report the results on the tensor Ayy and vector Ay analyzing powers are presented in the full angular range. The energy dependence of the tensor analyzing power T20 at a zero degree is also shown. First results on the Ay and Ayy in the d + d→p + X reaction near threshold are obtained. © Institute of Physics, SAS, Bratislava, Slovakia.
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Sekiguchi K., Sakai H., Witała H., Ermisch K., Glöckle W., Golak J., Hatano M., Kamada H., Kalantar-Nayestanaki N., Kato H., Maeda Y., Nishikawa J., Nogga A., Ohnishi T., Okamura H., Saito T., Sakamoto N., Sakoda S., Satou Y., Suda K., Tamii A., Uchigashima T., Uesaka T., Wakasa T., Yako K.
Physical Review C - Nuclear Physics 70 ( 1 ) 2004年7月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The deuteron-to-proton polarization-transfer coefficients for d-p elastic scattering were precisely measured with an incoming deuteron energy of 135 MeV/nucleon at the RIKEN Accelerator Research Facility. The data are compared to theoretical predictions based on exact solutions of the three-nucleon Faddeev equations with high-precision nucleon-nucleon forces combined with the current, most popular three-nucleon force (3NF) models: the 2π-exchange Tucson-Melbourne model, a modification thereof based on chiral symmetry, TM'(99), and the Urbana IX 3NF. Theory predicts large 3NF effects, especially in the angular range around the cross section minimum, predominantly for K xxy′ -K yyy′ (K xxy′ ,K yyy′ ), but the present data only partially concurs with the calculations. For the induced polarization, P y′ , the TM′(99) and Urbana IX 3NFs reproduce the data, but the Tucson-Melbourne 3NF fails to describe the data. For the polarization-transfer coefficients, K yy′ and K xzy′ , the predicted 3NF effects are in drastic disagreement with the data. These facts clearly reveal the defects of the 3NF models currently used.
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Pionic enhancement in quasielastic (p<sup>→</sup>,n<sup>→</sup>) reactions at 345 MeV
Wakasa T., Sakai H., Ichimura M., Hatanaka K., Greenfield M., Hatano M., Kamiya J., Kato H., Kawahigashi K., Maeda Y., Nakaoka Y., Okamura H., Ohnishi T., Otsu H., Sekiguchi K., Suda K., Tamii A., Uesaka T., Yagita T., Yako K.
Physical Review C - Nuclear Physics 69 ( 5 ) 2004年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Differential cross sections and a complete set of polarization observables have been measured for quasielastic (p→,n→) reactions on 12C and 40Ca at a bombarding energy of 345 MeV. The laboratory momentum transfers are qlab ≃ 1.2, 1.7, and 2.0 fm-1 for 12C and qlab≃ 1.7 fm -1 for 40Ca. In these momentum transfer regions, the isovector spin-longitudinal interaction is attractive where the one-pion exchange is dominant. The spin-longitudinal and spin-transverse polarized cross sections, IDq and IDp, are deduced. The theoretically expected enhancement in the spin-longitudinal mode is observed at q lab≃1.7 and 2.0 fm-1. The observed IDq is consistent with the pionic enhanced IDq evaluated in distorted wave impulse approximation (DWIA) calculations employing random phase approximation (RPA) response functions. The enhanced IDq implies the existence of a precursor to pion condensation in nuclei. On the other hand, the theoretically predicted quenching in the spin-transverse mode is not observed. The observed IDp is not quenched, but rather enhanced relative to that predicted via the DWIA+RPA calculations. Two-step contributions are responsible in part for the enhancement of IDp.
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Polarization transfer and spin response functions of the <sup>2</sup>H(p→,n→) reaction at 345 MeV
Wakasa T., Sakai H., Ichimura M., Hatanaka K., Greenfield M., Hatano M., Kamiya J., Kato H., Maeda Y., Okamura H., Ohnishi T., Otsu H., Sekiguchi K., Suda K., Tamil A., Uesaka T., Yagita T., Yako K.
Physical Review C - Nuclear Physics 69 ( 4 ) 044602 - 1 2004年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Differential cross sections and a complete set of polarization observables have been measured in the quasielastic 2H(p,n) reaction at a bombarding energy of 345 MeV and laboratory scattering angles of 16°, 22°, and 27°. The data are compared with plane-wave impulse approximation calculations employing an optimal factorization approximation. The agreement between the experimental and theoretical results validates these approximations in the present momentum- and energy-transfer regions. The experimental spin-longitudinal and spin-transverse response functions, R L and RT, respectively, are deduced from the data. The obtained RT is consistent with that obtained from the quasielastic electron scattering. The theoretical calculations with the Reid soft core potential give good descriptions for RL and RT, whereas the latter is slightly underestimated around the quasielastic peak.
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Pd scattering at 250 MeV and three-nucleon forces
Hatanaka K., Kamiya J., Maeda Y., Noro T., Sagara K., Sakai H., Sakemi Y., Sekiguchi K., Shimizu Y., Tamii A., Wakasa T., Yako K., Yoshida H., Ladygin V.
European Physical Journal A 18 ( 2-3 ) 293 - 296 2003年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：European Physical Journal A
We have measured angular distributions of the differential cross-section, the analyzing power and all of the spin transfer coefficients Kyy′, Kxx′, Kzx′, Kxz′, and Kzz′, for the pd elastic scattering at 250 MeV. These are the first measurements of a complete set of proton polarization observables for pd elastic scattering at intermediate energies. The present data are compared with theoretical predictions based on exact solutions of the three-nucleon Faddeev equations and modern realistic nucleon-nucleon potentials combined with three-nucleon forces (3NF), namely the Tucson-Melbourne (TM) 2π-exchange model, a modification thereof (TM) closer to chiral symmetry, and the Urbana IX model.
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Polarization transfer measurement for d-p scattering and three nucleon force effects
Sekiguchi K., Sakai H., Okamura H., Tamii A., Uesaka T., Suda K., Sakamoto N., Wakasa T., Satou Y., Ohnishi T., Yako K., Sakoda S., Suda K., Kato H., Maeda Y., Hatano M., Nishikawa J., Saito T., Uchigashima N., Kalantar-Nayestanaki N., Ermisch K.
Nuclear Physics A 721 C637 - C640 2003年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
Precise measurements of the deuteron to proton polarization transfer coefficients for the d-p elastic scattering has been made at 135 MeV/u at RIKEN Accelerator Research Facility. The obtained results are compared with the Faddeev calculations based on modern nucleon-nucleon forces together with Tucson-Melbourne, Tucson-Melbourne' and Urbana-Argonne type of three nucleon forces.
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Search for narrow dibaryon resonances by the pd → pdX and pd → ppX reactions
Tamii A., Hatanaka K., Hatano M., Hirooka D., Kamiya J., Kato H., Maeda Y., Saito T., Sakai H., Sakoda S., Sekiguchi K., Uchigashima N., Wakasa T., Yako K.
Nuclear Physics A 721 C621 - C624 2003年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
Dibaryons which have a very narrow decay width, called super-narrow dibaryons, are searched for by the p+d scattering at Ep = 295 MeV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A good mass resolution of 0.95 MeV and background free condition have been achieved. No resonance has been observed in the mass region of 1896-1914 MeV. The upper limits of the dibaryon production cross section have been determined.
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Maeda Y., Sakai H., Tamii A., Sakoda S., Kato H., Hatano M., Saito T., Uchigashima N., Kuboki H., Hatanaka K., Hirooka D., Shimizu Y., Kitamura Y., Fujita K., Sakamoto N., Okamura H., Suda K., Ikeda T., Itoh K., Sakemi Y., Wakasa T., Kamiya J., Yako K., Sekiguchi K., Sato Y., Greenfield M., Rapaport J., Kamada H.
Modern Physics Letters A 18 ( 2-6 ) 298 - 301 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
To study the three-nucleon force (3NF) effects without ambiguities from the Coulomb effect, the differential cross sections and the vector analyzing powers for the n→d elastic scattering at En = 245 MeV have been measured at θcm = 85° - 180°. The data are compared to the results of Faddeev calculations using modern nucleon-nucleon (NN) forces with and without 3NF. Additionally we have a plan to extend our measurement to the forward angular region where the Coulomb effect is expected to be large. We carried out the test experiment and measured the differential cross sections at θcm = 21°.
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Saito T., Hatano M., Kato H., Maeda Y., Sakai H., Sakoda S., Tamii A., Uchigashima N., Ladygin V., Isupov Y., Ladygina N., Malakhov A., Reznikov S., Uesakai T., Yako K., Ohnishi T., Sakamoto N., Sekiguchi K., Kumasaka H., Nishikawa J., Okamura H., Suda K., Suzuki R.
Modern Physics Letters A 18 ( 2-6 ) 294 - 297 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
Measurements of the tensor and vector analyzing powers Ayy, Axx, Axz, and Ay for the d→d → 3He n and d→d → 3H p reactions were performed at Ed = 270 and 200 MeV over wide angular range. T20 at θcm = 0° and 180° were also measured at Ed = 270, 200, and 140 MeV. Obtained data were compared with predictions based on one nucleon exchange approximation.
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Measurement of p+d elastic scattering at Ep=392 MeV
Tamii A., Uchigashima N., Sakai H., Hatano M., Maeda Y., Saito T., Ishida T., Kuboki H., Hatanaka K., Wakasa T., Kamiya J., Shimizu Y., Kitamura Y., Okamura H., Suda K., Yako K., Sekiguchi K., Satou Y.
Modern Physics Letters A 18 ( 2-6 ) 440 - 443 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
The cross sections and spin observables of the p+d elastic scattering have been measured at 392 MeV. The results are compared with the results of Faddeev calculations with and without including the three nucleon force.
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Sekiguchi K., Sakai H., Okamura H., Tamii A., Uesaka T., Suda K., Sakamoto N., Wakasa T., Satou Y., Ohnishi T., Yako K., Sakoda S., Kato H., Maeda Y., Hatano M., Nishikawa J., Saito T., Uchigashima N., Kalantar-Nayestanaki N., Ermisch K.
Modern Physics Letters A 18 ( 2-6 ) 327 - 329 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
Precise measurements of the deuteron to proton polarization transfer coefficients for the d-p elastic scattering have been made at 135 MeV/u at RIKEN Accelerator Research Facility. The obtained results are compared with the Faddeev calculations based on modern nucleon-nucleon forces together with Tucson-Melbourne, Tucson-Melbourne and Urbana-Argonne type of three nucleon forces.
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Search for super-narrow dibaryon resonances by the pd →, pdX and pd → ppX reactions
Tamii A., Hatano M., Kato H., Maeda Y., Saito T., Sakai H., Sakoda S., Uchigashima N., Hatanaka K., Hirooka D., Kamiya J., Wakasa T., Yako K., Sekiguchi K., Uesaka T.
Modern Physics Letters A 18 ( 2-6 ) 410 - 413 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
Dibaryons which have a very narrow decay width, called super-narrow dibaryons, are searched for by the p+d scattering at Ep = 295 MeV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A good mass resolution of 0.95 MeV and background free condition have been achieved. No resonance has been observed in the mass region of 1896-1914 MeV. The upper limits of the dibaryon production cross section have been determined.
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Three-body effects in p<sup>→</sup>d elastic scattering at 250 MEV
Shimizu Y., Hatanaka K., Sakemi Y., Wakasa T., Yoshida H., Kamiya J., Saito T., Sakai H., Tamii A., Sekiguchi K., Yako K., Maeda Y., Noro T., Sagara K., Ladygin V.
Modern Physics Letters A 18 ( 2-6 ) 313 - 316 2003年2月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Modern Physics Letters A
The angular distributions of the cross section, the proton analyzing power and all of proton polarization transfer coefficients of p→d elastic scattering were measured at 250 MeV. The present data are compared with theoretical predictions based on exact solutions of the three-nucleon Faddeev equations and modern realistic nucleon-nucleon potentials combined with three-nucleon forces. These results call for a better understanding of the spin structure of the three-nucleon force and very likely for a full relativistic treatment of the three-nucleon continuum.
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Three-body dN interaction in the analysis of the <sup>12</sup>C(d, d′) reaction at 270 MeV
Satou Y., Ishida S., Sakai H., Okamura H., Sakamoto N., Otsu H., Uesaka T., Tamii A., Wakasa T., Ohnishi T., Sekiguchi K., Yako K., Suda K., Hatano M., Kato H., Maeda Y., Nishikawa J., Ichihara T., Niizeki T., Kamada H., Glöckle W., Witała H.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 549 ( 3-4 ) 307 - 313 2002年12月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
We have measured the cross sections and analyzing powers Ay and Ayy for the elastic and inelastic scattering of deuterons from the 0+(g.s.), 2+(4.44 MeV), 3-(9.64 MeV), 1+(12.71 MeV), and 2-(18.3 MeV) states in 12C at an incident energy of 270 MeV. The data are compared with microscopic distorted-wave impulse approximation calculations where the projectile-nucleon effective interaction is taken from the three-nucleon t-matrix given by rigorous Faddeev calculations presently available at intermediate energies. The agreement between theory and data compares well with that for the (p, p′) reactions at comparable incident energies/nucleon. © 2002 Elsevier Science B.V. All rights reserved.
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Hatanaka K., Shimizu Y., Hirooka D., Kamiya J., Kitamura Y., Maeda Y., Noro T., Obayashi E., Sagara K., Saito T., Sakai H., Sakemi Y., Sekiguchi K., Tamii A., Wakasa T., Yagita T., Yako K., Yoshida H., Ladygin V., Kamada H., Glöckle W., Golak J., Nogga A., Witała H.
Physical Review C - Nuclear Physics 66 ( 4 ) 440021 - 4400210 2002年10月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The angular distributions of the cross section, the proton analyzing power, and all proton polarization transfer coefficients of p→d elastic scattering were measured at 250 MeV. The range of center-of-mass angles was 10°-165° for the cross section and the analyzing power, and about 10°-95° for the polarization transfer coefficients. These are the first measurements of a complete set of proton polarization observables for p→d elastic scattering at intermediate energies. The present data are compared with theoretical predictions based on exact solutions of the three-nucleon Faddeev equations and modern realistic nucleon-nucleon potentials combined with three-nucleon forces (3NF), namely, the Tucson-Melbourne (TM) 2π-exchange model, a modification thereof (TM′) closer to chiral symmetry, and the Urbana IX model. Large effects of the three-nucleon forces are predicted. The inclusion of the three-nucleon forces gives a good description of the cross section at angles below the minimum. However, appreciable discrepancies between the data and predictions remain at backward angles. For the spin observables the predictions of rise TM 3NF model deviate strongly from the other two 3NF models, which are close together, except for Kyy′. In the case of the analyzing power all 3NF models fail to describe the data at the upper half of the angular range. In the restricted measured angular range the polarization transfer coefficients are fairly well described by the TM′ and Urbana IX 3NF models, whereas the TM 3NF model mostly fails. The transfer coefficient Kyy′ is best described by the Urbana IX but the theoretical description is still insufficient to reproduce the experimental data. These results call for a better understanding of the spin structure of the three-nucleon force and very likely for a full relativistic treatment of the three-nucleon continuum.
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Production of thick and highly uniform CD2 targets for \vec{n}+d measurements 査読あり
Y. Maeda, H. Sakai, K. Hatanaka, A. Tamii
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 490 518 - 521 2002年9月
記述言語：英語 掲載種別：研究論文（学術雑誌）
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Uesaka T., Nishikawa J., Okamura H., Suda K., Sakai H., Tamii A., Sekiguchi K., Yako K., Sakoda S., Kato H., Hatano M., Maeda Y., Saito T., Uchigashima N., Sakamoto N., Satou Y., Ohnishi T., Wakui T., Wakasa T., Itoh K.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 533 ( 1-2 ) 1 - 7 2002年5月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Cross section, tensor analyzing power T20, and vector polarization correlation coefficient Cy,y for the 3He(d, p)4He reaction have been measured at 0° and Ed = 140, 200, and 270 MeV. The data are compared with a calculation based on an impulse approximation taking the D-state admixtures in deuteron, 3He, and 4He explicitly into account. The reasonable agreement with the data is understood as a consequence of a close connection between the 3He(d, p)4He reaction and the d + N backward scattering. © 2002 Elsevier Science B.V. All rights reserved.
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Search for narrow dibaryon resonances by the pd→pdX and pd→ppX reactions
Tamii A., Hatanaka K., Hatano M., Hirooka D., Kamiya J., Kato H., Maeda Y., Saito T., Sakai H., Sakoda S., Sekiguchi K., Uchigashima N., Uesaka T., Wakasa T., Yako K.
Physical Review C - Nuclear Physics 65 ( 4 ) 470011 - 470014 2002年4月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Nucleon-nucleon decoupled dibaryons below the pion emission threshold have been investigated by the pd→pdX and pd→ppX reactions at Ep - 300 MeV. Such dibaryons are predicted to either decay into a deuteron or two nucleons by emitting a γ ray and consequently have a very narrow width of less than 1 keV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A mass resolution of 0.95 MeV and background-free condition have been achieved. No resonance was found in either the d + γ or p + n + γ decay channels within the mass region of 1896-1914 MeV. Upper limits for the dibaryon production cross section are presented.
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Sekiguchi K., Sakai H., Sakai H., Witała H., Witała H., Glöckle W., Golak J., Golak J., Hatano M., Kamada H., Kato H., Maeda Y., Nishikawa J., Nogga A., Ohnishi T., Okamura H., Sakamoto N., Sakoda S., Satou Y., Suda K., Tamii A., Uesaka T., Wakasa T., Yako K.
Physical Review C - Nuclear Physics 65 ( 3 ) 340031 - 3400316 2002年3月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Precise measurements of deuteron vector and tensor analyzing powers Ayd, Axx, Ayy, and Axz in d-p elastic scattering were performed via 1H(d→,d)p and 1H(d→,p)d reactions at three incoming deuteron energies of Edlab = 140, 200, and 270 MeV. A wide range of center-of-mass angles from ≈ 10° to 180° was covered. The cross section was measured at 140 and 270 MeV at the same angles. These high precision data were compared with theoretical predictions based on exact solutions of three-nucleon Faddeev equations and modern nucleon-nucleon potentials combined with three-nucleon forces. Three-body interactions representing a wide range of present day models have been used: the Tucson-Melbourne 2 π-exchange model, a modification thereof closer to chiral symmetry, the Urbana IX model, and a phenomenological spin-orbit ansatz. Large three-nucleon force effects are predicted, especially at the two higher energies. However, only some of them, predominantly dσ/dΩ and Ayd, are supported by the present data. For tensor analyzing powers the predicted effects are in drastic conflict to the data, indicating defects of the present day three-nucleon force models.
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[Formula Presented] reactions in the [Formula Presented] resonance region
Hatanaka K., Kamiya J., Hirooka D., Maeda Y., Maeda Y., Noro T., Obayashi E., Okamura H., Sakai H., Tamii A., Tamura K., Wakasa T., Yako K., Yoshida H.
Physical Review C - Nuclear Physics 65 ( 1 ) 2002年
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The role of the Δ resonance has been discussed for the [Formula Presented] reactions both experimentally and theoretically. Recent calculations suggested resonance effects in the energy dependence of the differential cross section that seem to contradict existing data. Since the available data points are limited, it is important to measure the energy dependence of the differential cross sections and the analyzing powers in order to better understand the still unclear reaction mechanism of the ground state [Formula Presented] reactions. In the present paper, angular distributions of the differential cross sections and the analyzing powers were measured for [Formula Presented] reactions at incident energies of 250, 300, and 350 MeV. Experimental results for the [Formula Presented] reaction are compared with full-range distorted-wave Born approximation calculations. © 2001 The American Physical Society.
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Hatanaka K., Kamiya J., Hirooka D., Maeda Y., Maeda Y., Noro T., Obayashi E., Okamura H., Sakai H., Tamii A., Tamura K., Wakasa T., Yako K., Yoshida H.
Physical Review C - Nuclear Physics 65 ( 1 ) 146091 - 146095 2002年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
The role of the Δ resonance has been discussed for the 12,13,14C(p, π-)13,14,15Og.s. reactions both experimentally and theoretically. Recent calculations suggested resonance effects in the energy dependence of the differential cross section that seem to contradict existing data. Since the available data points are limited, it is important to measure the energy dependence of the differential cross sections and the analyzing powers in order to better understand the still unclear reaction mechanism of the ground state (p, π-) reactions. In the present paper, angular distributions of the differential cross sections and the analyzing powers were measured for 12,13C(p, π±) reactions at incident energies of 250, 300, and 350 MeV. Experimental results for the 12C(p, π-)13Og.s. reaction are compared with full-range distorted-wave Born approximation calculations.
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Search for narrow dibaryon resonances by the [Formula Presented] and [Formula Presented] reactions 査読あり
Tamii A., Hatanaka K., Hatano M., Hirooka D., Kamiya J., Kato H., Maeda Y., Saito T., Sakai H., Sakoda S., Sekiguchi K., Uchigashima N., Uesaka T., Wakasa T., Yako K.
Physical Review C - Nuclear Physics 65 ( 4 ) 2002年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review C - Nuclear Physics
Nucleon-nucleon decoupled dibaryons below the pion emission threshold have been investigated by the [Formula Presented] and [Formula Presented] reactions at [Formula Presented] Such dibaryons are predicted to either decay into a deuteron or two nucleons by emitting a [Formula Presented] ray and consequently have a very narrow width of less than 1 keV. The experiment was carried out at the Research Center for Nuclear Physics employing a two-arm magnetic spectrometer. A mass resolution of 0.95 MeV and background-free condition have been achieved. No resonance was found in either the [Formula Presented] or [Formula Presented] decay channels within the mass region of 1896–1914 MeV. Upper limits for the dibaryon production cross section are presented. © 2002 The American Physical Society.
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d→p and n→d scatterings at intermediate energy and three-nucleon force effects
Sakai H., Maeda Y., Sekiguchi K., Glöckle W., Greenfield M., Hatanaka K., Hatano M., Hirooka D., Kamada H., Kamiya J., Kato H., Ohnishi T., Okamura H., Rapaport J., Saito T., Sakamoto N., Sakoda S., Satou Y., Suda K., Tamii A., Uchigashima N., Uesaka T., Wakasa T., Witała H., Yako K.
Nuclear Physics A 689 ( 1-2 ) 353 - 356 2001年6月
記述言語：日本語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Nuclear Physics A
Precise data on cross sections, analyzing powers and polarization transfer coefficients are measured for the dp elastic scattering at 270 MeV (135 MeV/nucleon) and compared to Faddeev calculations assuming the nd scattering with modern nucleon-nucleon (NN) forces including the 2π exchange Tucson-Melbourne (TM) three-nucleon (3N) force. Excellent fits are obtained for the cross sections and vector analyzing powers when the 3N force is included, while the fits are deteriorated for the tensor analyzing powers if the 3N force is included. A moderate fit is obtained for the polarization transfer coefficients. Based on theses results, one can conclude that the size of amplitudes of the TM-SN force may be adequate but the spin dependent part may be deficient. The cross sections and the vector analyzing powers for the nd elastic scattering at 250 MeV are measured for the first time. Backward cross sections are underestimated by the NN+3N force Faddeev calculations. This difference might be attributed to relativistic effects.
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<sup>3</sup>He(d→,p)<sup>4</sup>He reaction at intermediate energies 査読あり
Uesaka T., Sakai H., Okamura H., Tamii A., Satou Y., Ohnishi T., Sekiguchi K., Yako K., Suda K., Sakoda S., Nishikawa J., Hatano M., Kato H., Maeda Y., Sakamoto N., Wakasa T., Itoh K.
Nuclear Physics A 684 ( 1-4 ) 606 - 608 2001年3月
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Yako K., Sakai H., Tamii A., Sekiguchi K., Sakoda S., Maeda Y., Hatano M., Kato H., Okamura H., Suda K., Greenfield M., Wakasa T., Kamiya J., Hirooka D., Hatanaka K.
Nuclear Physics A 684 ( 1-4 ) 563 - 565 2001年3月
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Polarization transfer measurements for dp scattering at 270 MeV 査読あり
Sakai H., Sekiguchi K., Kato H., Hatano M., Maeda Y., Ohnishi T., Okamura H., Sakamoto N., Sakoda S., Satou Y., Suda K., Tamii A., Uesaka T., Wakasa T., Yako K.
Nuclear Physics A 684 ( 1-4 ) 577 - 579 2001年3月
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Sekiguchi K., Sakai H., Okamura H., Sakamoto N., Tamii A., Uesaka T., Wakasa T., Satou Y., Ohnishi T., Yako K., Sakoda S., Suda K., Kato H., Maeda Y., Hatano M., Nishikawa J.
Nuclear Physics A 684 ( 1-4 ) 574 - 576 2001年3月
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Precise measurement of dp elastic scattering at 270 mev and three-nucleon force effects 査読あり
Sakai H., Sekiguchi K., Witała H., Glöckle W., Hatano M., Kamada H., Kato H., Maeda Y., Nogga A., Ohnishi T., Okamura H., Sakamoto N., Sakoda S., Satou Y., Suda K., Tamii A., Uesaka T., Wakasa T., Yako K.
Physical Review Letters 84 ( 23 ) 5288 - 5291 2000年
記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Physical Review Letters
The cross section, the deuteron vector Ady and tensor analyzing powers Aij, the polarization transfer coefficients Ky'ij, and the induced polarization Py' were measured for the dp elastic scattering at 270 MeV. The cross section and Ady are well reproduced by Faddeev calculations with modern data-equivalent nucleon-nucleon forces plus the Tucson-Melbourne three-nucleon force. In contrast, Aij, Ky'ij, or Py' are not described by such calculations. These facts indicate the deficiencies in the spin dependence of the Tucson-Melbourne force and call for extended three-nucleon force models. © 2000 The American Physical Society.