Measurement Of Sigma(+)P Elastic Scattering Cross Sections At Kek-Ps

Hiroko Kanda,J K Ahn,H Akikawa,J Arvieux,B Bassalleck,Min Suk Chung,H En Yo, Tadahiko Fukuda,H Funahashi,S V Golovkin, A M Gorin,Y Goto, M Hanabata,Toru Hayakawa, A K Ichikawa,M Ieiri,Kohzoh Imai, M Ishino,Yongbeom Dongj Kim,Yoshio Kondo, E N Kozarenko,I Kreslo,Jang Moo Lee, A Masaike,S Mihara,Kunihiko Nakai,Kazuhiro Nakazawa,K Ozawa,Akihiro Sato,Hiroyasu Sato,K S Sim,T Tabaru,F Takeutchi,P Tlustý,H Torii, Kei Yamamoto, S Yokkaich, Madoka Yoshida

PARTICLES AND NUCLEI（2006）

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摘要

An experiment to measure the Sigma(+)p scattering cross sections was carried out at KEK 12 GeV proton synchrotron. A scintillating fiber active target system was used as a hydrogen target for the hyperon production and subsequent hyperon-nucleon scattering. Out of 1.3 x 10(6) hyperon production events, 31 events were identified as Sigma(+)p elastic scattering events in the momentum region of 350 <= p(Sigma)+ <= 750 MeV/c. Differential cross sections in the angular region of -0.8 < cos theta(CM) < 0.8 and integrated cross sections with respect to the incident momentum were obtained. They were compared with the theoretical calculations.

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关键词

Sigma(+)p elastic scattering, hyperon-nucleon interaction, differential cross sections

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