Observation of bound states in the C reaction at 1.8 GeV/ in J-PARC

J-PARCにおける1.8GeV/でのC反応による束縛状態の観測

永江 知文*; 江川 弘行; 長谷川 勝一   ; 細見 健二  ; 市川 裕大   ; 今井 憲一; 佐甲 博之   ; 佐藤 進  ; 杉村 仁志; 谷田 聖   ; 早川 修平; 中田 祥之; 他31名*

Nagae, Tomofumi*; Ekawa, Hiroyuki; Hasegawa, Shoichi; Hosomi, Kenji; Ichikawa, Yudai; Imai, Kenichi; Sako, Hiroyuki; Sato, Susumu; Sugimura, Hitoshi; Tanida, Kiyoshi; Hayakawa, Shuhei; Nakada, Yoshiyuki; 31 of others*

We have carried out a pilot data taking of the J-PARC E05 experiment to search for the bound state peaks of Be in the C reaction at 1.8 GeV/. The measurement was performed at the K1.8 beam line of the J-PARC hadron experimental hall with a typical beam intensity of every six seconds. So far the best energy resolution of about 6 MeV FWHM was achieved with the existing SKS spectrometer. With a reasonable statistics, we have succeeded to observe peak structures in the bound region, which seems to suggest that the potential depth of would be deeper than 14 MeV estimated in the previous measurements.