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Relativistic Calculation of Dielectronic Recombination on the C4+ Ground State |
| LIU Yong1;ZOU Yu1,2;FANG Quan-Yu1;XU Ya-Qiong3 |
| 1Institute of Applied Physics and Computational Mathematics, P.O. Box 8009, Beijing 100088
2Center of Atomic and Molecular Science, Tsinghua University, Beijing 100084
3Institute of Physics, Chinese Academy of Sciences, Beijing 100080
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| Cite this article: |
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LIU Yong, ZOU Yu, FANG Quan-Yu et al 2001 Chin. Phys. Lett. 18 761-763 |
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Abstract The relativistic multichannel theory has been applied and a nonperturbative formula adopted to calculate the dielectronic recombination cross section due to ΔN=1 resonances for the ground state C4+. The first-order approximation is adopted for the radiative process and a correction based on the isolated resonance approximation is used for the very narrow resonances to include the radiation width. The convoluted cross section is in agreement within 5% with that of observation for resonances with n ≤ 5. For n=6 and 7, the integral cross section is overestimated by a factor of 6 and 4, respectively. According to our calculation, the Rydberg cut-off due to field ionization should be at a principal quantum number higher than that given by Mannervik et al. A Small relativistic effect is noticed at intrashell resonance.
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| Keywords:
34.80.Kw
32.90.+a
32.80.Hd
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Published: 01 June 2001
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| PACS: |
34.80.Kw
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32.90.+a
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(Other topics in atomic properties and interactions of atoms with photons)
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32.80.Hd
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(Auger effect)
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