Papers - MATSUDA Tatsuro
-
Study on theηππ－ system in theπ－p charge exchangereaction at 8.95 GeV/c
S. Fukui, N. Horikawa, S. Inaba, T. Inagaki, Y. Inagaki, Y. Ishizaki, T. Iwata, T. Kinashi, 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
Physics Letters B, Vol. 267, pp.293-298. 1991.9
-
A high speed nuclear magnetic resonance data acqusition systemwith a personal computer for apolarized target in high energy physics
S. Sakanaka, K. Dohmae, N. Hayashi, N. Horikawa, T. Iwata, A. Kishi, T. Matsuda, T. Nakanishi, S. Okumi, A. Wakai, K. Mori
Review of ScientificInstruments, Vol. 62, pp.1859-1860. 1991.7
-
The axial vector resonances, a1 and h1, in the π- ρ charge exchange reaction.
K. Ohmi, A. Ando, S. Fukui, N. Horikawa, K. Imai, S. Inaba, T. Inagaki, Y. Inagaki, Y. Ishizaki, A. Itano, T. Iwata, T. Kinashi, S. Kobayashi, M. Kurashina, I. Maeda, K. Maruyama, T. Matsuda, K. Mori, A. Murakami, T. Nakamura, T. Nakanishi, C. Ohmori, H.
Proc. RheinfelsWorkshop 1990"Hadron MassSpectrum",NuclearPhysics B(Proc.Suppl.)Vol. 21, pp.168-173. 1991.6
-
Study on the ωπ０andηπ－ Systems in theπ－p Reaction at KEK
T. Tsuru, S. Fukui, N. Horikawa, S. Inaba, T. Inagaki, Y. Ishizaki, T. Iwata, T. Kinashi, 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, J. Aoyagi, T. Has
Proc. RheinfelsWorkshop 1990"Hadron MassSpectrum",NuclearPhysics B(Proc.Suppl.)Vol. 21, pp.168-173. 1991.6
-
Study on the ωπ<sup>0</sup> and νπ<sup>-</sup> systems in the π<sup>-</sup>p reaction at KEK Reviewed
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., Aoyagi J., 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 J., Kobayashi K., Kobayashi S., Kobayashi Y., Matsuda K., Matsuda T., Mori K., Nakagawa T., Nakamura S., Nakamura T., Nakanishi T., Narita A., Ohmi K., Ohmori C., Okumi S., Samoto T., Shimizu H., Takamatsu K., Takasaki M., Tsubaki T., Tsuchiya T., Tsuru T., Yamauchi I., Yasu Y., Yoshida H., Wakai A.
Nuclear Physics B (Proceedings Supplements) 21 ( C ) 168 - 173 1991.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Nuclear Physics B (Proceedings Supplements)
Experimental studies on the ωπ 0 and νπ - systems in the π - p reactions have been performed at KEK. The moment analysis of the ωπ 0 system shows a clear peak of b 1 0 (1235) in the IJ pc = 11 +- wave. In the 11 -- wave, no clear peak is seen. The properties of C(1480) with 11 -- and ρ{variant}(1450) are discussed taking into account upper limits of their cross sections. The experiment on the νπ - system was planned to search for an exotic resonance with IJ pc = 11 -+ . The data taking run was finished and an analysis is under way. © 1991.
-
Ando A., Fukui S., Horikawa N., Imai K., Inaba S., Inagaki T., Inagaki Y., Ishizaki Y., Itano A., Iwata T., Kobayashi S., Kurashina M., Maeda I., Maruyama K., Matsuda T., Mori K., Murakami A., Nakamura T., Nakanishi T., Ohmi K., Ohmori C., Okuno H., Sasaki A., Sato T., Shirai J., Takamatsu K., Takashima R., Tamura N., Tsuru T., Yasu Y.
Nuclear Physics B (Proceedings Supplements) 21 ( C ) 98 - 102 1991.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Nuclear Physics B (Proceedings Supplements)
A partial-wave analysis based on the isobar model has been carried out for a high statistics π + π - π 0 data in the π - p charge exchange reaction in the mass range between 0.88 and 1.44 GeV. Two axial-vector resonances, a 1 (1260) and h 1 (1170), were observed in the analysis. The masses and widths of a 1 and h 1 were determined by fitting the partial-wave amplitude to the Breit Wigner formula at four t' regions. © 1991.
-
Study of theηπ－ System in π－p reaction at 6 GeV/c
T. Matsuda, J. 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, J. Kishi, K. Kobayashi, Y. Kobayashi, K. Matsuda, K. Mori, T. Nakagawa, S. Nakamura, T. Naka
Proc. 4th InternationalConf.(HADRON 91) "Hadron Spectroscopyand Structure", World Scientific, pp.34-39. 1991.4
-
Study of the ωπ<sup>0</sup> system in the π<sup>-</sup>p charge exchange reaction at 8.95 GeV/c Reviewed
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 257 ( 1-2 ) 241 - 246 1991.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
An experimental study was made of a ωπ 0 system produced in the charge exchange reaction π - p→ωπ 0 n at 8.95 GeV/c. The moment analysis was performed to study the spin-parity of the system in the mass region between 1.04 and 1.88 GeV. A clear peak of b 1 (1235) was observed in the J PC = 1 +- wave. No significant structure was seen in the 1 -- wave. An upper limit is obtained to be at most 1.9 μb for σ(π - p→X 0 n)Br(X 0 →ωπ 0 ) for X 0 with a width of 130 MeV at 1480 MeV, where C(1480) meson with J PC = 1 -- has been reported in a φπ 0 decay mode. © 1991.
-
Study of ωπ０ system in theπ－p charge exchange reaction at8.95 GeV/c
S. Fukui, N. Horikawa, S. Inaba, T. Inagaki, Y. Inagaki, Y. Ishizaki, T. Iwata, T. Kinashi, 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
Physics Letters B, Vol. 257, pp.241-246. 1991.3
-
Analyzing power of C and Cu ( p →, 2p) quasi-elastic scattering at 3.5 GeV
Ohmori C., Horikawa N., Ishida Y., Iwata T., Kinashi T., Maeda I., Matsuda T., Nakanishi T., Okumi S., Takeda Y., Toyama T., Hiramatsu S., Ishimoto S., Mori Y., Sato H., Tsuru T., Hasegawa T., Kobayashi Y., Nakagawa T., Hasai H., Iwatani K., Nishiyama F., Mori K., Ueno A., Holt J.
Physics Letters B 243 ( 1-2 ) 29 - 32 1990.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
Analyzing powers have been measured for the quasi-elastic ( p →, 2p) scattering in carbon and copper using a KEK 3.5 GeV polarized proton beam. The present result shows relatively larger analyzing powers compared with the ones obtained for carbon in the energy region 0.52-2.8 GeV at Saclay (Saturne). The t-dependence for C and Cu ( p →, 2p) is compared with a calculation based on the relativistic impulse approximation and is reproduced well. © 1990.
-
Analyzing power of C and Cu(p,2p) quasi-elastic scattering at 3.5 GeV
C. Ohmori, N. Horikawa, Y. Ishida, T. Iwata, T. Kinashi, I. Maeda, T. Matsuda, T. Nakanishi, S. Okumi, Y. Takeda, T. Toyama , Y. Kobayashi, T. Nakagawa , S. Hiramatsu, S. Ishimoto, Y. Mori, H. Sato, T. Tsuru , T. Hasegawa , K. Mori , K. Iwatani, H. Hasai,
Physics Letters B, Vol.243, pp.29-32. 1990.6
-
Measurement of analyzing power at forward angle for elastic pd scattering at 3.5 GeV
Ohmori C., Horikawa N., Ishida Y., Iwata T., Kinashi T., Maeda I., Matsuda T., Nakanishi T., Okumi S., Sakai K., Takeda Y., Toyama T., Yasuno M., Kobayashi Y., Nakagawa T., Hiramatsu S., Ishimoto S., Mori Y., Sato H., Tsuru T., Hasegawa T., Mori K., Iwatani K., Hasai H., Nishiyama F., Ueno A., Holt J.
Physics Letters B 230 ( 1-2 ) 27 - 30 1989.10
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
The analyzing power for elastic pd scattering at 3.5 GeV has been measured in the region 0.1≤-t≤1.5 (GeV/c) 2 , using the polarized proton beam at KEK. The angular distribution shows a behavior similar to that in the lower energy region. It is reproduced fairly well by the predictions of a multiple scattering model based on the Glauber theory. © 1989.
-
Measurement of Analyzing Power at Forward Angle forElastic pd Scattering at 3.5 GeV
C. Ohmori, N. Horikawa, Y. Ishida, T. Iwata, T. Kinashi, I. Maeda, T. Matsuda, T. Nakanishi, S. Okumi, Y. Takeda, T. Toyama , Y. Kobayashi, T. Nakagawa , S. Hiramatsu, S. Ishimoto, Y. Mori, H. Sato, T. Tsuru , T. Hasegawa , K. Mori , K. Iwatani, H. Hasai,
Physics Letters B, Vol. 230, pp.27-30. 1989.10
-
Proton polarimeter for high energy experiments at KEK
Ohmori C., Horikawa N., Ishida Y., Iwata T., Kinashi T., Maeda I., Matsuda T., Nakanishi T., Okumi S., Takeda Y., Toyama T., Kobayashi Y., Nakagawa T., Hiramatsu S., Ishimoto S., Mori Y., Sato H., Tsuru T., Hasegawa T., Mori K., Iwatani K., Hasai H., Nishiyama F., Ueno A., Holt J.
Nuclear Inst. and Methods in Physics Research, A 278 ( 3 ) 705 - 712 1989.6
Language：English Publishing type：Research paper (scientific journal) Publisher：Nuclear Inst. and Methods in Physics Research, A
A polarimeter for the polarized proton beam has been constructed at KEK. The measurement of the beam polarization at 3.5 GeV was performed by the newly constructed polarimeter. Monitoring of the beam polarization during the experiment was successfully done by a polyethylene target. The present paper describes the structure, the characteristics and the results of practical use for the experiment. © 1989.
-
Proton Polarimeter for High Energy Experiment at KEK
C. Ohmori, N. Horikawa, Y. Ishida, T. Iwata, T. Kinashi, I. Maeda, T. Matsuda, T. Nakanishi, S. Okumi, Y. Takeda, T. Toyama , Y. Kobayashi, T. Nakagawa , S. Hiramatsu, S. Ishimoto, Y. Mori, H. Sato, T. Tsuru , T. Hasegawa , K. Mori , K. Iwatani, H. Hasai,
Nuclear Instrumentsand Methods A, Vol. 278, pp.705-712. 1989.6
-
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 202 ( 3 ) 441 - 446 1988.3
Language：English Publishing type：Research paper (scientific journal) Publisher：Physics Letters B
High statistics data of the ηππ system in π - p→ηπ + π - n were obtained. A partial wave analysis was performed in the mass region between 1.37 and 1.85 GeV. Resonant structures were observed in the IJ PC = 11 -- wave around 1.6 GeV and in 13 -- around 1.7 GeV. The structure in 11 -- was fitted with a single Breit-Wigner and also fitted with two Breit-Wigner's. The result suggests the possible existence of two vector resonances around 1.6 GeV. The structure in 13 -- is considered to be the π 3 (1690). © 1988.
-
Vector Resonances around 1.6GeV of theηπ＋π－ System in theπ－P Charge ExchangeReaction at 8.95 GeV/c
S. Fukui, N. Horikawa, S. Inaba, T. Inagaki, Y. Inagaki, Y. Ishizaki, T. Iwata, T. Kinashi, 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
Physics Letters B, Vol. 202, pp.441-446. 1988.3