Influence of relaxation effects on probabilities of the 2s2p35S2－2s22p2 3P1，2 intercombination transitions in NII

doi:10.1088/1009-1963/12/3/305

中国物理B ›› 2003, Vol. 12 ›› Issue (3): 271-274.doi: 10.1088/1009-1963/12/3/305

Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII

刘欣生¹, 张义军¹, 颉录有², 董晨钟², 袁萍³

(1)Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China; (2)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; (3)College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China

收稿日期:2002-08-21 修回日期:2002-11-18 出版日期:2003-03-16 发布日期:2005-03-16
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos 49975003, 10274062), by the Major Program of the National Natural Science Foundation of China (Grant No.40135010), by the Knowledge Innovation Program of the Chinese Academy

Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII

Yuan Ping (袁萍)^ab, Liu Xin-Sheng (刘欣生)^b, Xie Lu-You (颉录有)^a, Zhang Yi-Jun (张义军)^b, Dong Chen-Zhong (董晨钟)^a

^a College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China; ^b Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science, Lanzhou 730000, China

Received:2002-08-21 Revised:2002-11-18 Online:2003-03-16 Published:2005-03-16
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos 49975003, 10274062), by the Major Program of the National Natural Science Foundation of China (Grant No.40135010), by the Knowledge Innovation Program of the Chinese Academy

摘要/Abstract

摘要： Transition probabilities of the 2s2p^3 {}^5S_2－2s^22p^2 {}^3P_{1,2} intercombination transitions in NII have been calculated by using a large-scale multiconfiguration Dirac－Fock method. In the calculation the most important effects of relativity, correlation, and relaxation are considered. From the calculated transition probabilities, the lifetime of the 2s2p^3 {}^5S_2 metastable state is derived. The result is in excellent agreement with the latest experimental result. In the meantime the influence of anomalously strong relaxation effects on probabilities of the 2s2p^3 {}^5S_2－2s^22p^2 {}^3P_{1,2} lines in NII have been found.

Abstract: Transition probabilities of the 2s2p³ ⁵S₂－2s²2p^{2 3}P_1,2 intercombination transitions in NII have been calculated by using a large-scale multiconfiguration Dirac－Fock method. In the calculation the most important effects of relativity, correlation, and relaxation are considered. From the calculated transition probabilities, the lifetime of the 2s2p^{3 5}S₂ metastable state is derived. The result is in excellent agreement with the latest experimental result. In the meantime the influence of anomalously strong relaxation effects on probabilities of the 2s2p³ ⁵S₂－2s²2p² ³P_1,2 lines in NII have been found.

Key words: transition probability, lifetime, multiconfiguration Dirac－Fock method

中图分类号: (Oscillator strengths, lifetimes, transition moments)

32.70.Cs

31.30.J- (Relativistic and quantum electrodynamic (QED) effects in atoms, molecules, and ions)

袁萍, 刘欣生, 颉录有, 张义军, 董晨钟. Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII[J]. 中国物理B, 2003, 12(3): 271-274.

Yuan Ping (袁萍), Liu Xin-Sheng (刘欣生), Xie Lu-You (颉录有), Zhang Yi-Jun (张义军), Dong Chen-Zhong (董晨钟). Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII[J]. Chinese Physics, 2003, 12(3): 271-274.

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Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII

Influence of relaxation effects on probabilities of the 2s2p³⁵S₂－2s²2p² ³P_1，2 intercombination transitions in NII

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