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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 | 2011/09 |
| 形態種別 | 研究論文 |
| 査読 | 査読あり |
| 標題 | Precision Spectroscopy of Deeply Bound Pionic Atoms and Partial Restoration of Chiral Symmetry in Medium |
| 執筆形態 | その他 |
| 掲載誌名 | PROGRESS OF THEORETICAL PHYSICS |
| 出版社・発行元 | PROGRESS THEORETICAL PHYSICS PUBLICATION OFFICE |
| 巻・号・頁 | 126(3),pp.483-509 |
| 著者・共著者 | Natsumi Ikeno,Rie Kimura,Junko Yamagata-Sekihara,Hideko Nagahiro,Daisuke Jido,Kenta Itahashi,Li Sheng Geng,Satoru Hirenzaki |
| 概要 | We study theoretically the formation spectra of deeply bound pionic atoms expected to be observed by experiments with high energy resolution at RIBF/RIKEN, and we discuss in detail the possibilities to extract new information on the pion properties at finite density from the observed spectra, which may provide information on partial restoration of chiral symmetry in medium. We find that the non-yrast pionic states such as 2s are expected to be seen in the (d,He-3) spectra, which will be helpful to reduce uncertainties of the theoretical calculations in the neutron wave functions in nucleus. The observation of the 2s state with the ground is state is also helpful to reduce the experimental uncertainties associated in the calibration of the absolute excitation energy. We find that the nuclear densities probed by atomic pions are quite stable and almost constant for various atomic states and various nuclei. Effects of the pion wave function renormalization to the formation spectra are also evaluated. |
| DOI | 10.1143/PTP.126.483 |
| ISSN | 0033-068X |