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Study of $$Sigma N$$ interaction from the $$Sigma p$$ scattering experiment at J-PARC

J-PARCにおける$$Sigma p$$散乱を使った$$Sigma N$$相互作用の研究

三輪 浩司*; 藤田 真奈美; 長谷川 勝一   ; 細見 健二  ; 市川 真也; 市川 裕大   ; 今井 憲一*; 七村 拓野; 成木 恵; 佐甲 博之   ; 佐藤 進  ; 田村 裕和; 谷田 聖   ; 山本 剛史  ; 他55名*

Miwa, Koji*; Fujita, Manami; Hasegawa, Shoichi; Hosomi, Kenji; Ichikawa, Masaya; Ichikawa, Yudai; Imai, Kenichi*; Nanamura, Takuya; Naruki, Megumi; Sako, Hiroyuki; Sato, Susumu; Tamura, Hirokazu; Tanida, Kiyoshi; Yamamoto, Takeshi; 55 others*

A high statistics $$Sigma p$$ scattering experiment has been performed at the K1.8 beamline in the J-PARC Hadron Experimental Facility. Data for momentum-tagged $$Sigma^-$$ beam running in a liquid hydrogen target were accumulated by detecting the $$pi^{-}p to {K}^{+}{Sigma}^{-}$$ reaction with a high intensity $$pi^-$$ beam of 20 M/spill. The number of the $$Sigma^-$$ beam was about $$1.7 times 10^7$$ in total. The $$Sigma^- p$$ elastic scattering and the $$Sigma^- p to Lambda n$$ inelastic scattering events were successfully observed with about 100 times larger statistics than that in past experiments.

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パーセンタイル:84.57

分野:Astronomy & Astrophysics

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