Measurement of the differential cross sections of the Sigma-p elastic scattering in momentum range of 470 to 850 MeV/c

• DOI: 10.48550/arxiv.2104.13608
• Publication Date: 2021-01-01
• Authors: J-PARC E Collabor...; NULL AUTHOR_ID; K. Miwa; J. K. Ahn; Y. Akazawa; T. Aramaki; S. Ashikaga; S. Callier; N. Chiga; Sung-Wook Choi; H. Ekawa; P. Evtoukhovitch; N. Fujioka; Masaya Fujita; T. Gogami; T. Harada; S. Hasegawa; S. Hayakawa; R. Honda; Satoshi Hoshino; K. Hosomi; M. Ichikawa; Y. Ichikawa; M. Ieiri; M. Ikeda; K. Imai; Yuji Ishikawa; S. Ishimoto; Wooseung Jung; S. Kajikawa; H. Kanauchi; Hiroyuki Kanda; T. Kitaoka; B. M. Kang; H. Kawai; S. H. Kim; Kazuya Kobayashi; T. Koike; Kenji Matsuda; Y. Matsumoto; S. Nagao; Ryoichi Nagatomi; Yasuki Nakada; Mayumi Nakagawa; I. Nakamura; T. Nanamura; M. Naruki; Seiji Ozawa; L. Raux; T. G. Rogers; A. Sakaguchi; T. Sakao; H. Sako; Sayaka Sato; T. Shiozaki; K. Shirotori; Kanichi Suzuki; Satoshi Suzuki; M. Tabata; C. De La Taille; H. Takahashi; T. Takahashi; T. Takahashi; Hideo Tamura; M. Tanaka; K. Tanida; Z. Tsamalaidze; M. Ukai; H. Umetsu; S. Wada; T. O. Yamamoto; Junya Yoshida; K. Yoshimura
• Keywords: Sigma; Momentum (technical analysis); Scattering cross-section; Nuclear cross section

A high statistics $\Sigma p$ scattering experiment has been performed at the J-PARC Hadron Experimental Facility. Data for momentum-tagged $\Sigma^{-}$ running in a liquid hydrogen target were accumulated by detecting $\pi^{-}p \to K^{+}\Sigma^{-}$ reaction with intensity $\pi^{-}$ beam of 20 M/spill. Differential cross sections $\Sigma^{-}p$ elastic derived drastically improved accuracy identifying largest about 4,500 events from 1.72 $\times$ $10^{7}$ $\Sigma^{-}$. The differential section shows clear forward-peaking angular distribution momentum range 470 to 850 MeV/$c$. accurate data will impose strong constraint on theoretical models baryon-baryon interactions.