Study of identification method by the reaction for a scattering experiment at J-PARC

J-PARCにおける散乱実験のための反応を使った同定法の研究

坂尾 珠和*; 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50名*

Sakao, Tamao*; 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; 50 of others*

The reaction is an important elementary process to produce from a proton target and is a key for a scattering experiment where the momentum of should be tagged from the missing momentum of the reaction. However, the spectroscopy method has not been established yet due to the difficulty of the detection. Therefore, we have proposed a new detection method where and from the decay are measured by a forward magnetic spectrometer and a detector cluster surrounding the target, respectively. The feasibility of the detection method was confirmed by analyzing the J-PARC E40 data taken with such a detector system. In the analysis, 's were successfully identified in the missing mass spectrum of the reaction.