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弛豫与关联效应对NII离子2s22p3s3P1—2s22p21D2与2s22p3s1P1—2s22p23P0,1,2自旋禁戒跃迁概率的影响

袁 萍 刘欣生 张义军 颉录有 董晨钟

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弛豫与关联效应对NII离子2s22p3s3P1—2s22p21D2与2s22p3s1P1—2s22p23P0,1,2自旋禁戒跃迁概率的影响

袁 萍, 刘欣生, 张义军, 颉录有, 董晨钟

Influence of relaxation and correlation effects on probabilities of the 2s22p3s 3P1—2s22p21D2 and 2s22p3s 1P1—2s22p23P0,1,2 intercombination transitions in NII

Yuan Ping, Liu Xin-Sheng, Zhang Yi-Jun, Xie Lu-You, Dong Chen-Zhong
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  • 用多组态Dirac-Fock方法,并系统考虑相对论效应、电子关联、弛豫效应等重要贡献,计算了NII离子2s22p3s 3P1—2s22p21D2和2s22p3s 1P1—2s22p23P0,1,2自旋禁戒跃迁概率和振子强度-通过比较计算证实:弛豫和关联效应对禁戒跃迁概率的影响非常大,考虑了这些效应后,计算结果有显著的改善-由跃迁概率和振子强度的计算值推断,2s22p3s 3P1—2s22p21D2的谱线强度应该比原有的理论预言值小-
    The transition probabilities for the intercombination lines of 2s22p3s 3P1—2s22p21D2 and 2s22p3s 1P1—2s22p23P0,1,2 in NII have been calculated by using a large-scale multi-configuration Dirac-Fock method- In the calculation the most important effects of relativity, correlation, and relaxation are considered- The strong influence of correlation and relaxation effects on the transition probabilities have been confirmed by a compared calculation- When taking into account these effects in calculations, a remarkable improvement is found- From the results, the intensity of the 2s22p3s 3P1—2s22p21D2 line is supposed to be smaller than the previous theoretical prediction-
    • 基金项目: 国家自然科学基金(批准号:49975003)、国家自然科学基金“十五”重点项目(批准号:40135010)、中国科学院寒区旱区环境与工程研究所创新项目(批准号:210037)、国家教育部优秀青年教师资助计划项目及西北师范大学科技创新工程项目(批准号:NWNU-KJCXGC-214)资助的课题-
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  • 文章访问数:  6743
  • PDF下载量:  768
  • 被引次数: 0
出版历程
  • 收稿日期:  2002-07-10
  • 修回日期:  2002-08-10
  • 刊出日期:  2005-04-03

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