| Theoretical Investigation of Decay Process in a Doubly Excited 2s^2 ^1S0 State of He-Like Ions |
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| 引用本文： | 张登红 董晨钟 小池文博. Theoretical Investigation of Decay Process in a Doubly Excited 2s^2 ^1S0 State of He-Like Ions[J]. 中国物理快报, 2006, 23(8): 2059-2062 |
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| 作者姓名： | 张登红 董晨钟 小池文博 |
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| 作者单位： | [1]College of Physics and Electronics Engineering, Northwest Normal University, Lanzhou 730070 [2]National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000 [3]School of Medicine, Kitasato University, 1-15-1 Kitasato, Sagamihra, Kanagawa 228-855, Japan |
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| 基金项目： | Supported by the National Natural Science Foundation of China under Grant Nos 10376026 and 10434100, the Foundation for the Excellent Youth Scholars of the Ministry of Education of China. |
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| 摘 要： | In the framework of multi-configuration Dirac-Fock theory, a detailed calculation is performed for the decay rates and the energies of the doubly excited 2s^2 ^1So state of He-like ions, of which atomic number Z ranges from 6 to 92. The 2s^2 ^1So - ls ^2S1/2 Auger decay is predominant at low Z regime, whereas the 2s^2 ^1So - 1s2p ^1,3P1 two-electron one-photon transitions become quite important in moderate and high Z regimes. For heavy ions with Z ≥ 72, the contribution of 2s^2 ^1So - 1s2s ^3S1 M1 transition is significant. The Breit interaction considerably enhances the 2s^2 ^1So - 1s ^2S1/2 Auger rate at high Z regime.
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| 关 键 词： | 理论调查 衰变进程 双重激励 Dirac-Fock理论 |
| 收稿时间： | 2006-03-06 |
| 修稿时间： | 2006-03-06 |
Theoretical Investigation of Decay Process in a Doubly Excited 2s2 1S0 State of He-Like Ions |
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| ZHANG Deng-Hong,DONG Chen-Zhong,Fumihiro Koike. Theoretical Investigation of Decay Process in a Doubly Excited 2s2 1S0 State of He-Like Ions[J]. Chinese Physics Letters, 2006, 23(8): 2059-2062 |
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| Authors: | ZHANG Deng-Hong DONG Chen-Zhong Fumihiro Koike |
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| Affiliation: | 1. College of Physics and Electronics Engineering, Northwest Normal University, Lanzhou 730070 ; 2.National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000;3.School of Medicine, Kitasato University, 1-15-1 Kitasato, Sagamihra, Kanagawa 228-855, Japan |
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| Abstract: | |
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| Keywords: | 31.15.Ne 31.25.Jf 32.80.Hd |
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