| ATOMIC AND MOLECULAR PHYSICS |
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Absolute Cross Sections for Near-Threshold Electron-Impact Excitation of the 2s 2S→2p 2P Transition of Li-Like C3+, N4+, and O5+ Ions |
| YANG Ning-Xuan1**, ZHANG Jian-Jun1, DONG Chen-Zhong2 |
1Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832000
2College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070
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| Cite this article: |
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YANG Ning-Xuan, ZHANG Jian-Jun, DONG Chen-Zhong 2014 Chin. Phys. Lett. 31 083401 |
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Abstract Excitation cross sections of 1s22s 2S1/2→1s22p 2P1/2, 3/2 transition among the fine-structure levels in Li-like C3+, N4+, and O5+ ions are calculated for energies of the near-threshold by using the relativistic distorted-wave program REIE06. The target state wavefunctions are calculated by using the Grasp92 code. The continuum orbitals are studied in the distorted-wave approximation, in which the direct and exchange potentials among all the electrons are included. The results of the Li-like C3+ ion settle the discrepancy between several previous experiments by using the crossed-beams fluorescence method, in good agreement with the measurements of Savin et al. Moreover, the results in Li-like N4+, and O5+ ions are compared with the previous experiments, and a good agreement is obtained.
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| PACS: |
34.80.Dp
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(Atomic excitation and ionization)
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31.15.-p
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(Calculations and mathematical techniques in atomic and molecular physics)
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32.10.-f
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(Properties of atoms)
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