Effects of valence-valence, core-valence, and core-core correlations on the fine-structure energy levels in Al-like ions
Effects of valence-valence, core-valence, and core-core correlations on the fine-structure energy levels in Al-like ions
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DOI：
10.1103/physreva.81.022502
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发表时间：
2010-02
影响因子：
2.9
通讯作者：
L. Hao;G. Jiang;H. Hou
中科院分区：
文献类型：
--
作者：
L. Hao;G. Jiang;H. Hou
本文报告了允许的和相互组合的跃迁以及涉及高电荷铝离子中项的水平的精细结构的多配置狄拉克-哈特里-福克计算。报告了 Fe XIV-Au LXVII 离子中类 Al 3s{sup 2}3p-3s3p{sup 2} 跃迁的精细结构能级、项分裂、波长、跃迁速率以及分支比和寿命的结果，并使用代码 GRASP2K 与其他理论和实验进行了比较。我们计算的精细结构能级与实验结果以及美国国家标准与技术研究所实验编制的能量值（只要有）非常吻合。发现包括核价相关性在内的计算值是相似的，并且与中 Z 离子的其他理论和实验值进行了很好的比较。对于较高的 Z，包含价相关性给出的结果与多体微扰理论的结果非常一致。我们相信，我们广泛的计算值可以指导实验人员在未来的工作中确定精细结构水平。根据我们的辐射衰变率，我们还计算了一些精细结构水平的辐射寿命。在此计算中，我们还预测了几个精细结构水平的新数据，其中没有其他理论和/或实验结果可用。« less
This paper reports on multiconfiguration Dirac-Hartree-Fock calculations for both allowed and intercombination transitions and fine structure referring to the levels of a term in highly charged aluminum like ions. Results for fine-structure energy levels, the term splitting, the wavelengths, transition rates, and thereby the branching ratios and lifetimes for the Al-like 3s{sup 2}3p-3s3p{sup 2} transitions in the ions Fe XIV-Au LXVII are reported and compared with other theories and experiments, using the codes GRASP2K. Our calculated fine-structure energy levels are in excellent agreement with the experimental results and the experimentally compiled energy values of the National Institute for Standards and Technology wherever available. The calculated values including core-valence correlation are found to be similar and to compare very well with other theoretical and experimental values for medium-Z ions. For higher Z the inclusion of the valence correlation gives results in excellent agreement with those from many-body perturbation theory. We believe that our extensive calculated values can guide experimentalists in identifying the fine-structure levels in their future work. From our radiative decay rates we have also calculated radiative lifetimes of some fine-structure levels. In this calculation we also predict new data for several fine-structure levels where no other theoretical and/or experimentalmore » results are available.« less