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新山 雅之 所属 京都産業大学 理学部 物理科学科 職種 教授 |
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| 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 |