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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 | 2013/04 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Production of hyperon resonances induced by kaons on a deuteron target |
| 執筆形態 | その他 |
| 掲載誌名 | PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS |
| 出版社・発行元 | OXFORD UNIV PRESS INC |
| 巻・号・頁 | 2013(4),pp.043D02-1-043D02-18 |
| 著者・共著者 | J. Yamagata-Sekihara,T. Sekihara,D. Jido |
| 概要 | The K(-)d -> pi Y N reaction is theoretically studied to investigate the K--induced production of the hyperon resonances Sigma(1385) and Lambda(1405). For this purpose, we take into account the p-wave amplitudes for meson-baryon two-body scatterings as well as the s-wave amplitudes. Due to the fact that the hyperon resonances are selectively produced from the (K) over bar N channel in this reaction, the Lambda(1405) peak appears at 1420 MeV, which implies that Lambda(1405) and Sigma(1385) could be separately seen in the missing-mass spectrum of the emitted nucleon in the K(-)d -> nX reaction. The pi Y invariant-mass spectrum in this study is consistent with experimental data both for Sigma(1385) and Lambda(1405). The pion exchange contributions are also included and are found to give a smooth background without distorting the peak structure of the hyperon resonances. |
| DOI | 10.1093/ptep/ptt009 |
| ISSN | 2050-3911 |