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Doublet 1/2+ resonances of B9 in the complex scaling method
| Title: | Doublet 1/2+ resonances of B9 in the complex scaling method |
| Authors: | Odsuren, Myagmarjav Browse this author | | Myo, Takayuki Browse this author | | Katō, Kiyoshi Browse this author →KAKEN DB |
| Issue Date: | 17-Apr-2023 |
| Publisher: | American Physical Society (APS) |
| Journal Title: | Physical Review C |
| Volume: | 107 |
| Issue: | 4 |
| Start Page: | 044003 |
| Publisher DOI: | 10.1103/PhysRevC.107.044003 |
| Abstract: | We try to resolve the longstanding controversy over the low-lying 1/2+ state in 9B. Experimentally, the energies for this state show a gap between various measurements done by different groups and some of them reported that the existence of the state is unclear. The situation is similar in the theoretical calculations. We study the existence and structure of the 9B(1/2+) state based on our previous method for the α + α + N cluster model with the complex scaling method that well explains the measured photodisintegration cross section for the 9Be(1/2+). We find two resonances at the energies of Eres 1 = 1.81 MeV with a decay width = 1.98 MeV and Eres 2 = 2.38 MeV, = 1.81 MeV in 9B. The charge radii and the three-body channel configurations are calculated to see the properties of two resonances. We also calculate the level density of two resonances, which indicates the difficulty to distinguish them in the energy distribution. |
| Rights: | ©2023 American Physical Society |
| Type: | article |
| URI: | http://hdl.handle.net/2115/92178 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 加藤 幾芳
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