| Theoretical investigation of the Gamow-Teller transition across N=40 shell |
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| 作者姓名： | 支启军 宇燕 郑强 |
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| 作者单位： | 1. School of Physics and Electronics, Guizhou Normal University, Guiyang 550001, China;;2. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China |
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| 基金项目： | Supported by National Natural Science Foundation of China (11165006, 10865004, 10775123); Natural Science and Technology Foundation of Guizhou Province ([2008]2254, LKS[2010]08); International Scientific and Technological Cooperation Projects of Guizhou Province ([2011]7026); Doctor Funding of Guizhou Normal University |
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| 摘 要： | The Gamow-Teller transitions for pf shell nuclei with proton number less than 40 and neutron number larger than 40 were believed to be blocked, due to the full filling of the neutron orbit. However, recent experimental research shows that the Gamow-Teller transitions for these kinds of nuclei are not blocked. In this paper, we systematically calculate the GT transition of pf shell nuclei 76Se in different truncations, and the results are compared with experimental results. It is shown that, due to correlations, the believed blocked GT transition occurs, and the shell model calculations reproduce the experimental GT strength. In addition, the electron capture rates in a stellar environment are calculated and discussed.
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| 关 键 词： | 伽莫夫 泰勒 外壳 中子数 质子数 原子核 实验 计算 |
| 收稿时间： | 2011-2-12 |
| 修稿时间： | 2011-6-13 |
Theoretical investigation of the Gamow-Teller transition across N=40 shell |
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| ZHI Qi-Jun , YU Yan ZHENG Qiang School of Physics , Electronics,Guizhou Normal University,Guiyang ,China School of Mathematics , Computer Science,China.Theoretical investigation of the Gamow-Teller transition across N=40 shell[J].High Energy Physics and Nuclear Physics,2011,35(11):1022-1025. |
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| Authors: | ZHI Qi-Jun YU Yan ZHENG Qiang School of Physics Electronics Guizhou Normal University Guiyang China School of Mathematics Computer Science China |
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| Affiliation: | ZHI Qi-Jun 1,1) YU Yan 1 ZHENG Qiang 2 1 School of Physics and Electronics,Guizhou Normal University,Guiyang 550001,China 2 School of Mathematics and Computer Science,China |
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| Abstract: | The Gamow-Teller transitions for pf shell nuclei with proton number less than 40 and neutron number larger than 40 were believed to be blocked, due to the full filling of the neutron orbit. However, recent experimental research shows that the Gamow-Teller transitions for these kinds of nuclei are not blocked. In this paper, we systematically calculate the GT transition of pf shell nuclei 76Se in different truncations, and the results are compared with experimental results. It is shown that, due to correlati... |
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| Keywords: | Gamow-Teller transition electron capture rate shell model |
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