新山 雅之
   所属   京都産業大学  理学部 物理科学科
   職種   教授
言語種別 英語
発行・発表の年月 2013/08
形態種別 研究論文
査読 査読あり
標題 J-PARC E27 Experiment to Search for a Nuclear Kaon Bound State K (-) pp
執筆形態 その他
掲載誌名 FEW-BODY SYSTEMS
出版社・発行元 SPRINGER WIEN
巻・号・頁 54(7-10),pp.1191-1194
著者・共著者 Y. Ichikawa,H. C. Bhang,S. Bufalino,H. Ekawa,P. Evtoukhovitch,A. Feliciello,H. Fujioka,S. Hasegawa,S. Hayakawa,R. Honda,K. Hosomi,K. Imai,S. Ishimoto,C. W. Joo,S. Kanatsuki,R. Kiuchi,T. Koike,H. Kumawat,Y. Matsumoto,K. Miwa,M. Moritsu,T. Nagae,M. Naruki,M. Niiyama,Y. Nozawa,R. Ota,A. Sakaguchi,H. Sako,V. Samoilov,S. Sato,K. Shirotori,H. Sugimura,S. Suzuki,T. Takahashi,T. N. Takahashi,H. Tamura,T. Tanaka,K. Tanida,A. O. Tokiyasu,Z. Tsamalaidze,B. J. Roy,M. Ukai,T. O. Yamamoto,S. B. Yang
概要 In the J-PARC E27 experiment, we search for a K (-) pp bound state via the d(pi (+), K (+)) reaction at 1.7 GeV/c at the K1.8 beam line. The binding energy and decay width of the K (-) pp bound state can be obtained in the missing mass measurement with a good energy resolution of 2 MeV/c (2). A range counter array (RCA) was constructed to detect the two high-momentum protons from the K (-) pp decay and to reduce the background such as quasi-free hyperon production. Recently, we have carried out a pilot run in June, 2012. The d(pi (+), K (+)) missing-mass spectrum has been obtained for the first time. In this report, an overview of the E27 experiment and a preliminary result on this pilot run are presented.
DOI 10.1007/s00601-013-0668-3
ISSN 0177-7963/1432-5411