| Original Articles |
|
|
|
|
Theoretical Investigation of Decay Process in a Doubly Excited 2s2 1S0 State of He-Like Ions |
| ZHANG Deng-Hong1;DONG Chen-Zhong1,2;Fumihiro Koike3 |
| 1College of Physics and Electronics Engineering, Northwest Normal University, Lanzhou 730070
2National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 730000
3School of Medicine, Kitasato University, 1-15-1 Kitasato, Sagamihra, Kanagawa 228-855, Japan |
|
| Cite this article: |
|
ZHANG Deng-Hong, DONG Chen-Zhong, Fumihiro Koike 2006 Chin. Phys. Lett. 23 2059-2062 |
|
|
|
|
Abstract 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 2s2 1S0 state of He-like ions, of which atomic number Z ranges from 6 to 92. The 2s2 1S0-1s 2S1/2 Auger decay is predominant at low Z regime, whereas the 2s2 1S0-1s2p 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 2s2 1S0-1s2s 3S1 M1 transition is significant. The Breit interaction considerably enhances the 2s2 1S0-1s 22S1/2 Auger rate at high Z regime.
|
| Keywords:
31.15.Ne
31.25.Jf
32.80.Hd
|
|
|
Published: 01 August 2006
|
|
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
