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Relativistic Distorted-Wave Calculations of Electron Impact Excitation Cross Sections of Be-Like C 2+ Ions |
| JIANG Jun 1;DONG Chen-Zhong 1,2;XIE Lu-You1;WANG Jian-Guo3;YAN Jun3;Stephan Fritzsche4 |
| 1College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 7300702 National Laboratory of Heavy-Ion Accelerator of Lanzhou, Lanzhou 7300003 Institute of Applied Physics and Computational Mathematic, Beijing 1000884 Institute fur Physik, Universitat Kassel, D-34132 Kassel, Germany |
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| Cite this article: |
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JIANG Jun, DONG Chen-Zhong, XIE Lu-You et al 2007 Chin. Phys. Lett. 24 691-694 |
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Abstract A fully relativistic distorted-wave program is developed based on the Grasp92 and Ratip packages to calculate electron impact excitation (EIE) cross sections. As a first application of the program, the EIE cross sections of Be-like C 2+ ions from the metastable 1s22s2p 3P to 1s22p2 3P excitation and the inner-shell excitations are calculated systematically. Meanwhile, the correlation effects of target states are discussed. It is found that the correlation effects play an important role in the low energy EIE cross sections. An excellent agreement is found when the results are compared with previous
calculations and recent measurements.
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| Keywords:
34.80.Kw
34.80.Dp
31.25.Jf
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Received: 18 August 2006
Published: 08 February 2007
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