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ヤマガタ ジュンコ
YAMAGATA JUNKO
山縣 淳子 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 | 2010/04 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | The (K-, p) reaction on nuclei with in-flight kaons |
| 執筆形態 | その他 |
| 掲載誌名 | NUCLEAR PHYSICS A |
| 出版社・発行元 | ELSEVIER SCIENCE BV |
| 巻・号・頁 | 835(1-4),pp.382-385 |
| 著者・共著者 | A. Ramos,V. K. Magas,J. Yamagata-Sekihara,S. Hirenzaki,E. Oset |
| 概要 | We perform a theoretical study of the spectrum of protons with kinetic energies of around 600 MeV, emitted following the interaction of 1 GeV/c kaons with nuclei. A recent experimental analysis of this (K-, p) reaction on C-12, based on the dominant quasielastic process, has suggested a deeply attractive kaon nucleus potential. Our Monte Carlo simulation considers, in addition, the one-and two-nucleon K- absorption processes producing hyperons that decay into pi N pairs. We find that this kaon in-flight reaction is not well suited to determine the kaon optical potential due, essentially, to the limited sensitivity of the cross section to its strength, and also to unavoidable uncertainties from the coincidence requirement applied in the experiment. A shallow kaon nucleus optical potential obtained in chiral models is perfectly compatible with the observed spectrum. |
| DOI | 10.1016/j.nuclphysa.2010.01.224 |
| ISSN | 0375-9474/1873-1554 |