A $\\Sigma p$ scattering Experiment at J-PARC and the Analysis Status

Y. Nakada,Jung Keun Ahn,Yuya Akazawa,T. Aramaki, S. Ashikaga,Stephane Callier,Nobuyuki Chiga,Sung Wook Choi,Hiroyuki Ekawa, Petr Evtoukhovitch, N. Fujioka,Manami Fujita,Shoichi Hasegawa,Shuhei Hayakawa,Ryotaro Honda, S. Hoshino, Kenji Hosomi,M. Ichikawa,Yudai Ichikawa,Masaharu Ieiri, Michihiko Ikeda,Kenichi Imai,Yuji Ishikawa,Shigeru Ishimoto, Woo Seung Jung, H. Kanauchi, H. Kanda,Byung Min Kang,Hideyuki Kawai,Shin Hyung Kim,Kazuya Kobayashi,Takeshi Koike, Kumpei Matsuda, Y. Matsumoto,Koji Miwa,Ryohei Nagatomi,Manami Nakagawa,Isamu Nakamura, T. Nanamura,Megumi Naruki, S. Ozawa, Ludovic Raux,Atsushi Sakaguchi,Hiroyuki Sako,Susumu Sato, T. Shiozaki,Kotaro Shirotori, K. N. Suzuki,Shoji Suzuki,Makoto Tabata,Christophe de La Taille,Hitoshi Takahashi,Toshiyuki Takahashi,Tomonori Takahashi,Hirokazu Tamura,Manobu Tanaka,Kiyoshi Tanida, Z. Tsamalaidze,Mifuyu Ukai, H. Umetsu,Takeshi O. Yamamoto,Seong Bae Yang,Koji Yoshimura

Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018)（2019）

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摘要

J-PARC E40 aims to measure the differential cross sections of the Σ^±p elastic scatterings and the Σ^−p → Λn conversion. A clear peak of Σ^− was observed in a missing mass spectrum of the π^−p → K^+X reaction and recoil protons from the πp elastic scattering were successfully observed in the data taken in the summer 2018. The rest of data taking is coming in the spring 2019.

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