Papers - MATSUDA Tatsuro
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Application of position-sensitive proportional counter to X-ray spectroscopy
Hasegawa T., Fukumori T., Kaminishi K., Matsuda T.
Japanese Journal of Applied Physics, Part 2: Letters 35 ( 9 B ) 1996.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Japanese Journal of Applied Physics, Part 2: Letters
A small position-sensitive counter with a single resistive anode wire was constructed for use in a double-crystal X-ray spectrometer system. Using this position detector we have measured Kα doublet X-rays in the positions of which are very close together and obtained the two corresponding rocking curves simultaneously, to determine the lattice constant differences in various crystals.
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Application ofPosition-Sensitive ProportionalCounter to X-RaySpectroscopy
T. Hasegawa, T. Fukumori, K. Kaminishi, T. Matsuda
Japanese Journalof Applied Physics,Vol. 35, L pp.1225-L1226. 1996.9
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Large enhancement of deuteron polarization with frequency modulated microwaves Reviewed
Adeva B., Arik E., Ahmad S., Arvidson A., Badelek B., Ballintijn M., Bardin G., Baum G., Berglund P., Betev L., Bird I., Birsa R., Björkholm P., Bonner B., de Botton N., Boutemeur M., Bradamante F., Bressan A., Brüll A., Buchanan J., Bültmann S., Burtin E., Cavata C., Chen J., Clement J., Clocchiatti M., Corcoran M., Crabb D., Cranshaw J., Çuhadar J., Dalla Torre S., Deshpande A., van Dantzig R., Day D., Dhawan S., Dulya C., Dyring A., Eichblatt S., Faivre J., Fasching D., Feinstein F., Fernandez C., Frois B., Garabatos C., Garzon J., Gaussiran T., Giorgi M., von Goeler E., Golutvin I., Gomez A., Gracia G., de Groot N., Grosse Perdekamp M., Gülmez E., von Harrach D., Hasegawa T., Hautle P., Hayashi N., Heusch C., Horikawa N., Hughes V., Igo G., Ishimoto S., Iwata T., de Jong M., Kabuß E., Kageya T., Kaiser R., Karev A., Kessler H., Ketel T., Kiryushin I., Kishi A., Kisselev Y., Klostermann L., Krämer D., Krivokhijine V., Kukhtin V., Kyynäräinen J., Lamanna M., Landgraf U., Lau K., Layda T., Le Goff J., Lehar F., de Lesquen A.
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 372 ( 3 ) 339 - 343 1996.4
Language：English Publishing type：Research paper (scientific journal) Publisher：Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
We report a large enhancement of 1.7 in deuteron polarization up to values of 0.6 due to frequency modulation of the polarizing microwaves in a two liter polarized target using the method of dynamic nuclear polarization. This target was used during a deep inelastic polarized muon-deuteron scattering experiment at CERN. Measurements of the electron paramagnetic resonance absorption spectra show that frequency modulation gives rise to additional microwave absorption in the spectral wings. Although these results are not understood theoretically, they may provide a useful testing ground for the deeper understanding of dynamic nuclear polarization.
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Large enhancement ofdeuteron polarization with frequency molulated microwaves
B. Adeva, E. Arik, A. Arvidson, T. Matsuda(97番目/174人)他170名
Nuclear Instrumentsand Methods A, Vol.372, pp. 339-343.Erratum-ibid. A, Vol.376, p.490. 1996.4
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Adeva B., Arik E., Arvidson A., Badelek B., Ballintijn M., Bardin G., Baum G., Berglund P., Betev L., Bird I., Birsa R., Björkholm P., Bonner B., de Botton N., Bradamante F., Bressan A., Bültmann S., Burtin E., Cavata C., Crabb D., Cranshaw J., Çuhadar T., Dalla Torre S., van Dantzig R., Deshpande A., Dhawan S., Dulya C., Dyring A., Eichblatt S., Faivre J., Fasching D., Feinstein F., Fernandez C., Frois B., Garzon J., Gaussiran T., Giorgi M., von Goeler E., Gomez A., Gracia G., de Groot N., Grosse Perdekamp M., Gülmez E., von Harrach D., Hasegawa T., Hautle P., Hayashi N., Heusch C., Horikawa N., Hughes V., Igo G., Ishimoto S., Iwata T., Kabuß E., Kageya T., Karev A., Kessler H., Ketel T., Kishi A., Kisselev Y., Klostermann L., Kramer D., Krivokhijine V., Kröger W., Kyynäräinen J., Lamanna M., Landgraf U., Layda T., Le Goff J., Lehar F., de Lesquen A., Lichtenstadt J., Litmaath M., Lopez-Ponte S., Lowe M., Magnon A., Mallot G., Marie F., Martin A., Martino J., Matsuda T., Mayes B., McCarthy J., Medved K., van Middelkoop G., Miller D., Mori K., Moromisato J., Nagaitsev A.
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 369 ( 1 ) 93 - 100 1996.2
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering of polarised muons on polarised protons and deuterons in the range 0.003 < x < 0.7. From these asymmetries and the previously published inclusive spin asymmetries we determine, for the first time, the x-dependent spin distributions for up and down valence quarks and for non-strange sea quarks. We find that the first moments of the valence quark spin distributions are Δu v = 1.01 ± 0.19 ± 0.14 and Δd v = -0.57 ± 0.22 ± 0.11. The spin distribution function of non-strange sea quarks is consistent with zero over the measured range of x and the first moment is Δū = Δd̄ = -0.02 ± 0.09 ± 0.03.
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Polarization of valence and nonstrange sea quarks in the nucleon from semiinclusive spinasymmetries
B. Adeva, E. Arik, A. Arvidson, T. Matsuda(81番目/142人)他147名
Physics Letters B,Vol.369, pp.93-100. 1996.2
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A new measurement of the spin-dependent structure function g<inf>1</inf>(x) of the deuteron
Adams D., Adeva B., Arik E., Arvidson A., Badelek B., Ballintijn M., Bardin G., Baum G., Berglund P., Betev L., Birsa R., Björkholm P., Bonner B., de Botton N., Bradamante F., Bressan A., Bültmann S., Burtin E., Cavata C., Clocchiatti M., Crabb D., Cranshaw J., Çuhadar T., Dalla Torre S., van Dantzig R., Deshpande A., Dhawan S., Dulya C., Dyring A., Eichblatt S., Fasching D., Feinstein F., Fernandez C., Frois B., Garzon J., Giorgi M., von Goeler E., Gracia G., Granier de Cassagnac R., de Groot N., Grosse Perdekamp M., Gülmez E., von Harrach D., Hasegawa T., Hautle P., Hayashi N., Heusch C., Horikawa N., Hughes V., Igo G., Ishimoto S., Iwata T., Kabuß E., Kageya T., Karev A., Kessler H., Ketel T., Kishi A., Kisselev Y., Klostermann L., Krämer D., Krivokhijine V., Kröger W., Kurek K., Kyynäräinen J., Lamanna M., Landgraf U., Le Goff J., Lehar F., de Lesquen A., Lichtenstadt J., Litmaath M., Lopez-Ponte S., Lowe M., Magnon A., Mallot G., Marie F., Martin A., Martino J., Matsuda T., Mayes B., McCarthy J., Medved K., van Middelkoop G., Miller D., Mori K., Moromisato J., Nagaitsev A., Nassalski J.
Physics Letters B 357 ( 1-2 ) 248 - 254 1995.8
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
We present a new measurement of the spin-dependent structure function g 1 d of the deuteron in deep inelastic scattering of 190 GeV polarised muons on polarised deuterons, in the kinematic range 0.003 < x < 0.7 and 1 GeV 2 < Q 2 < 60 GeV 2 . This structure function is found to be negative at small x. The first moment Γ 1 d =∫ 0 1 g 1 d dx evaluated at Q 0 2 = 10 GeV 2 is 0.034 ± 0.009 (stat.) ± 0.006 (syst.). This value is below the Ellis-Jaffe sum rule prediction by three standard deviations. Using our earlier determination of Γ 1 p , we obtain Γ 1 p - Γ 1 n = 0.199 ± 0.038 which agrees with the Bjorken sum rule. © 1995.
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A new measurement of the spin dependent structure functiong１(x) of the deuteron
D. Adams, B. Adeva, E. Arik, A. Arvidson, T.Matsuda(80番目/141人)他136名
Physics Letters B, Vol.357,pp. 248-254. 1995.8
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KEK-PS Experiment 248(AIDA)
S. Fukui, T. Hasegawa, T. Matsuda他27名
Proc. the Workshop on Hadron Physics at e+e- collider, Oct. 14-18, 1994, IHEP Beijing, ed. X. Fan et al, pp.38-41. 1994.10
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New Results on Spectroscopy from BENKEI
K. Takamatsu, H. Aoyagi, S. Fukui, T. Hasegawa, N. Hayashi, N. Horikawa, J. Iizuka, S. Inaba, S. Ishimoto, Y. Ishizaki, T. Iwata, E. Kanatani, H. Kawai, T. Kinashi, A. Kishi, K. Kobayashi, Y. Kobayashi, K. Matsuda, T. Matsuda, K. Mori, T. Nakagawa, S. Nak
Nuovo CimentoVol.107A,pp.1925-1939. 1994.10
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New results on spectroscopy from BENKEI Reviewed
Aoyagi H., Fukui S., Hasegawa T., Hayashi N., Horikawa N., Iizuka J., Inaba S., Ishimoto S., Ishizaki Y., Iwata T., Kanatani E., Kawai H., Kinashi T., Kishi A., Kobayashi K., Kobayashi Y., Matsuda K., Matsuda T., Mori K., Nakagawa T., Nakamura S., Nakamura T., Nakanishi T., Narita A., Ohmi K., Ohmori C., Samoto T., Shimizu H., Tajima Y., Takamatsu K., Takasaki M., Tsubaki T., Tsuchiya K., Tsuru T., Yamauchi I., Yasu Y., Yoshida H., Wakai A.
Il Nuovo Cimento A 107 ( 10 ) 1925 - 1939 1994.10
Language：English Publishing type：Research paper (scientific journal) Publisher：Il Nuovo Cimento A
New results on meson spectroscopy at KEK are presented. Experimental data on the reaction π - p→ηπ - p at 6.3 GeV/c have been collected by the Benkei spectrometer at the 12 GeV proton synchrotron to the aim of searching for IJ PC =11 -+ states in the ηπ - system. A marked forward-backward asymmetry of the events is observed in the Gotffired-Jackson frame of the ηπ - system. The result of the partial-wave analysis shows a clear bump of the P + wave around 1320 MeV/c 2 . Checks for the result and the analysis are discussed. © 1994 Società Italiana di Fisica.
DOI： 10.1007/BF02823587
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Spin asymmetry inmuon-proton deep inelastic scattering on a transversely polarized target
D. Adams, B. Adeva, E. Arik, A. Arvidson, T. Matsuda(86番目/150人)他145名
Physics Letters, B,Vol. 336, pp.125-130. 1994.9
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Measurement of thespin-dependent structure functiong１(x) of the proton
D. Adams, B. Adeva, E. Arik, A. Arvidson, T. Matsuda(86番目/150人)他145名
Physics Letters, B,Vol. 329, pp.399-406<Erratum>Physics Letters B, Vol.339, pp. 332-333. 1994.6
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Uehara S., Abe K., Amako K., Arai Y., Arima T., Asano Y., Chiba M., Chiba Y., Daigo M., Fukawa M., Fukushima Y., Haba J., Hanai H., Hemmi Y., Higuchi M., Hinode F., Hirose T., Homma Y., Hosoda N., Ishihara N., Iwata Y., Kanda N., Kanematsu N., Kanzaki J., Kikuchi R., Kondo T., Korhonen T., Krüger A., Kurashige H., MacNaughton J., Matsuda E., Matsui T., Miura M., Miyake K., Mori S., Nagashima Y., Nakagawa Y., Nakamura T., Nakano I., Odaka S., Ogawa K., Ohama T., Ohsugi T., Ohyama H., Okamoto A., Ono A., Oyama T., Sakamoto H., Sakuda M., Sato M., Sato N., Shioden M., Shirai J., Shirakata M., Sumiyoshi T., Suzuki A., Takada Y., Takaki H., Takasaki F., Takita M., Tamura N., Tobimatsu K., Tsuboyama T., Unno Y., Utsumi M., Watase Y., Yabuki F., Yamada Y., Yamagata T., Yamamoto Y., Yonezawa Y., Yoshida H.
Zeitschrift für Physik C Particles and Fields 63 ( 2 ) 213 - 218 1994.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Zeitschrift für Physik C Particles and Fields
Experimental studies of open charm production in two-photon processes have been performed. In the measurement, charmed hadrons were identified by electrons from their semi-leptonic decays. The result was compared with calculations based on the direct process and photon-gluon fusion process by resolved photons. We found that the effect of the gluon component in a photon is substantial in the observed events. © 1994 Springer-Verlag.
DOI： 10.1007/BF01411012
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Study of the ηπ<sup>-</sup> system in the π<sup>-</sup>p reaction at 6.3 GeV/c Reviewed
Aoyagi H., Fukui S., Hasegawa T., Hayashi N., Horikawa N., Iizuka J., Inaba S., Ishimoto S., Ishizaki Y., Iwata T., Kanatani E., Kawai H., Kinashi T., Kishi A., Kobayashi K., Matsuda K., Matsuda T., Mori K., Nakagawa T., Nakamura S., Nakamura T., Nakanishi T., Narita A., Ohmi K., Ohmori C., Samoto T., Shimizu H., Tajima Y., Takamatsu K., Takasaki M., Tsubaki T., Tsuchiya K., Tsuru T., Yamauchi I., Yasu Y., Yoshida H., Wakai A.
Physics Letters B 314 ( 2 ) 246 - 254 1993.9
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
Data of the ηπ - system were obtained in the reaction π - p → ηπ - p at 6.3 GeV/c beam momentum. About 17 k events of ηπ - were collected in the mass range 0.8 ≤ M ηπ - ≤ 1.8 GeV/c 2 and in the range of the momentum transfer squared 0.075 ≤ |t′| ≤ 0.60 (GeV/c) 2 . A large forward-backward asymmetry was observed around 1.3 GeV/c 2 in the Gottfried-Jackson frame of the ηπ - system. A partial wave analysis of the data was performed. A peak of the D + wave attributed to a 2 (1320) is clearly seen. An enhancement is observed around 1.3 GeV/c 2 in the P + wave. © 1993.
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Development of Cerenkov counter utilized silika-aerogel of low refractive index
Kai Zenichiro, Nakayama Hirofumi, Matsuda Tatsuro et al.
Bulletin of the Faculty of Engineering, Miyazaki University 39 21 - 29 1993.8
Language：Japanese Publishing type：Research paper (bulletin of university, research institution) Publisher：Miyazaki University
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Study of theηπ－system in π－p reaction at 6.3 GeV/c
H. Aoyagi, S. Fukui, T. Hasegawa, N. Hayashi, N. Horikawa, J. Iizuka, S. Inaba, S. Ishimoto, Y. Ishizaki, T. Iwata, E. Kanatani, H. Kawai, T. Kinashi, A. Kishi, K. Kobayashi, Y. Kobayashi, K. Matsuda, T. Matsuda, K. Mori, T. Nakagawa, S. Nakamura, T. Naka
Physics Letters B, Vol.314, pp.246-254. 1993.6
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Partial Wave Analysis, π－p →ωπ０n
T. Kinashi, S. Fukui, N. Horikawa, S. Inaba, T. Inagaki, Y. Inagaki, Y. Ishizaki, T. Iwata, M. Kurashina, I. Maeda, T. Matsuda, K. Mori, T. Nakamura, T. Nakanishi, K. Ohmi, C. Ohmori, T. Sato, K. Takamatsu, R. Takashima, T. Tsuru, Y. Yasu
Proc. 4th InternationalConf.(HADRON91)"Hadron Spectroscopyand Structure",WorldScientific, pp.40-45. 1992.4
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Sakanaka S., Dohmae K., Hayashi N., Horikawa N., Iwata T., Kishi A., Matsuda T., Nakanishi T., Okumi S., Wakai A., Mori K.
Review of Scientific Instruments 62 ( 7 ) 1859 - 1860 1991.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Review of Scientific Instruments
A high-speed nuclear-magnetic-resonance (NMR) data-acquisition system, incorporating a personal computer, has been developed to determine the polarization of the polarized target for high-energy physics experiments. A dedicated analog-to-digital converter (ADC) board is used for automatic ADC sampling synchronizing with an internal clock. Within about 1.5 s, 128 NMR signals are obtained and the averaged signal is derived.
DOI： 10.1063/1.1142383
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Fukui S., Horikawa N., Inaba S., Inagaki T., Inagaki Y., Ishizaki Y., Iwata T., Kinashi T., Kurashina M., Maeda I., Matsuda T., Mori K., Nakamura T., Nakanishi T., Ohmi K., Ohmori C., Sato T., Takamatsu K., Takashima R., Tsuru T., Yasu Y.
Physics Letters B 267 ( 2 ) 293 - 298 1991.9
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
A further study on the ηππ system in the charge exchange reaction π - p→ηπ + π - n at 8.95 GeV/c has been performed at KEK. A partial wave analysis was done for three t′ regions, 0-0.05, 0.05-0.20 and 0.20-0.60 (GeV/c) 2 in the mass range between 1.155 and 1.555 GeV. The IJ pc =00 -+ wave via a 0 (980)π intermediate state shows clear peaks of η(1295) and η(1400) in the third t′ region. The state η(1400) shows a mass value of 1388±4 MeV. The 01 ++ wave via a 0 π shows also a clear peak of f 1 (1285) in the third t′ region. The higher mass region between 1.51 and 1.83 GeV was also studied for the same three t′ regions. No I=0 pseudoscalar state is seen in the analysis. © 1991.