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arXiv 1609.01372physics.atom-ph
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W $^{54+}$离子的E1、M1、E2跃迁能和几率

E1, M1, E2 transition energies and probabilities of W$^{54+}$ ions

Xiao-bin Ding, Rui Sun, Jia-xin Liu, Fumihiro Koike, Izumi Murakami, Daiji Kato, Hiroyuki A Sakaue, Nobuyuki Nakamura, Chen-zhong Dong

摘要:

本文对类钙钨离子的E_1、M_1、E_2跃迁进行了全面的理论研究。使用多组态Dirac-Fock(MCDF)方法与有限的主动空间处理,基态组态多重态之间M1和E2跃迁的波长和几率([Ne]3s $^{2}$ 3 p $^{6}$ 3d $^{2}$ MM)和[Ne] 3s $^{2}$ 3 p $^{5}$ 3d $^{3}$和[Ne]3s $^{2}$之间的E1跃迁计算了$^{2}$ 3 p $^{6}$ 3d $^{2}$。计算结果与实验数据吻合较好。目前的E1和M1计算与以前的理论值进行了比较。对于E2跃迁,指出了3s和3 p轨道电子关联的重要性。预测了几个强E1跃迁,这对等离子体诊断具有潜在的优势。

英文摘要:

A comprehensive theoretical study of the E1, M1, E2 transitions of Ca-like tungsten ions is presented. Using multi-configuration Dirac-Fock (MCDF) method with a restricted active space treatment, the wavelengths and probabilities of the M1 and E2 transitions between the multiplets of the ground state configuration ([Ne]3s$^{2}$3p$^{6}$3d$^{2}$) and of the E1 transitions between [Ne]3s$^{2}$3p$^{5}$3d$^{3}$ and [Ne]3s$^{2}$3p$^{6}$3d$^{2}$ have been calculated. The results are in reasonable agreement with available experimental data. The present E1 and M1 calculations are compared with previous theoretical values. For E2 transitions, the importance of electron correlation from 3s and 3p orbitals is pointed out. Several strong E1 transitions are predicted, which have potential advantage for plasma diagnostics.

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