Measurement of the Polarization of 〓^0 Hyperons Produced Inclusively by 12-GeV Protons on Tungsten

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概要

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• The polarization of 2.4 x 10' A' hyperons has been measured in inclusiveproduction by 12- GeV protons on tungsten at three production angles, 3.5', 6.5',and 9.5'. In terms of Feynma?t's x.. and the transverse momentum p. of A', thekinematic range is 0.3$,v.$0.8 and 0.4<p.$l.6 GeV/c. The A' was identifiedby detecting the proton and pion from the A'+pn- decay with a double-stagemagnetic spectrometer; and its polarization was determined from a hybrid MonteCarlo analysis on asymmetries in the angular distribution of the decay products.The observed polarization is consistent with the data obtained at higher energies,indicating that the phenomenon of the inclusive A' polarization scales down tothe 12-GeV region. The polarization at 12 GeV ivacreases Iinearly with p. up to16 % at p7= 1.0 GeV/c, showing a tendency to level off above that point.

• 社団法人日本物理学会の論文
• 1983-12-15

著者

• Asano Y

  Hokkaido Univ. Sapporo Jpn

• Asano Yuzo

  Institute of Applied Physics, University of Tsukuba

• Mori Shigeki

  Institute of Applied Physics, University of Tsukuba

• Nakano Itsuo

  Institute of Physics, University of Tsukuba

• Asano Y

  Hokkaido Univ. Sapporo

• Fukushima Y

  Department Of Physics Tokyo Metropolitan University

• Fukui Yasuo

  National Institute Of Multimedia Education

• Mori Shigeki

  Institute Of Applied Physics University Of Tsukuba

• Katoh Kenichi

  Department Of Physics Faculty Of Science Tohoku University

• YASUOKA Kiyoshi

  Institute of Basic Medical Science, University of Tsukuba

• Asano Yuzo

  Institute Of Applied Physics University Of Tsukuba

• KONDO Kenjiro

  National Laboratory for High Energy Physics

• ABE Fumio

  Institute of Physics,University of Tsukuba

• HARA Kazuhiko

  Institute of Physics,University of Tsukuba

• KIM Nobuhiro

  Institute of Physics,University of Tsukuba

• KONDO Kunitaka

  Institute of Physics,University of Tsukuba

• MIYASHITA Shigeyuki

  Institute of Physics,University of Tsukuba

• MIYATA Hitoshi

  Institute of Physics,University of Tsukuba

• SUGAYA Tetsushi

  Institute of Physics,University of Tsukuba

• TAKIKAWA Koji

  Institute of Physics,University of Tsukuba

• TANAKA Ryotaro

  Institute of Physics,University of Tsukuba

• YAMAMOTO Yuzo

  Institute of Physics,University of Tsukuba

• YASUDA Takahiro

  Institute of Physics,University of Tsukuba

• IGUCHI Yasuo

  Institute of Applied Physics,University of Tsukuba

• KUROKAWA Shinichi

  National Laboratory for High Energy Physics (KEK)

• MAKI Akihiro

  National Laboratory for High Energy Physics (KEK)

• ASANO Yoshihiro

  NTT Electrical communications Laboratories

• Katoh K

  National Defense Acad. Kanagawa

• Asano Y

  Fukui Univ. Technol. Fukui

• Katoh Kenichi

  Department Of Applied Physics National Defense Academy

• Hara Kazuhiko

  Institute Of Physics University Of Tsukuba

• Asano T

  Hokkaido Univ. Sapporo

• Kondo Kunitaka

  Institute For Nuclear Study University Of Tokyo

• Maki Akihiro

  National Laboratory For High Energy Physics

• Yamamoto Yuzo

  Institute Of Physics University Of Tsukuba

• Yamamoto Yuzo

  Institute Of Carbide Chemistry Faculty Of Engineering Yokohama National Univ.

• Fukushima M

  National Laboratory For High Energy Physics (kek)

• Abe Fumio

  Institute Of Physics University Of Tsukuba

• Nakano Itsuo

  Institute Of Physics University Of Tsukuba

• Kim Nobuhiro

  Institute Of Physics University Of Tsukuba

• Iguchi Yasuo

  Institute Of Applied Physics University Of Tsukuba

• Iguchi Yasuo

  Institute For Optical Research Kyoiku University

• Takikawa Koji

  Institute Of Physics University Of Tsukuba

• Tanaka Ryotaro

  Department Of Physics Hiroshima University

• Yasuoka K

  Tokyo Institute Of Technology

• Miyata H

  Niigata Univ. Niigata

• Yasuoka Kiyoshi

  Institute Of Physics University Of Tsukuba:(present Address)fermi National Accelerator Laboratory

• Sugaya Tetsushi

  Institute Of Physics University Of Tsukuba

• Yasuda Takahiro

  Institute Of Nuclear Study University Of Tokyo

• Yasuda Takahiro

  Institute Of Physics University Of Tsukuba:institute For Nuclear Study University Of Tokyo

• Kurokawa S

  Kek Tsukuba

• Yasuda Takahiro

  Institute for Nuclear Study, University of Tokyo, Tokyo 188

• Yasuda Takahiro

  Institute for Nuclear Study, The University of Tokyo

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