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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 | 2015/03 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Formation spectra of pionic atoms in the Green's function method |
| 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 | 2015(3),pp.033D01-1-033D01-13 |
| 著者・共著者 | Natsumi Ikeno,Junko Yamagata-Sekihara,Hideko Nagahiro,Satoru Hirenzaki |
| 概要 | We study the formation spectra of deeply bound pionic atoms in the (d, He-3) reactions using the Green's function method, stimulated by recent developments in experimental techniques. The Green's function method is considered to be a better theoretical formalism than the effective number approach to evaluate the formation rate of unstable systems. We compare the calculated results by the Green's function method with those by the effective number approach in various cases. We find that the differences between the results obtained by both methods are reasonably small and we can reaffirm that the effective number approach is a good theoretical method for the analyses of the previous experimental data with typical binding-energy errors of Delta B. E. greater than or similar to 20 keV for the deeply bound pionic atoms. On the other hand, we think that theoretical results using the Green's function method will be necessary in the near future to deduce precise information on the pion properties in nuclei from analyses of the pionic atom data with better accuracy than before. |
| DOI | 10.1093/ptep/ptv013 |
| ISSN | 2050-3911 |