MULTICONFIGURATIONAL HARTREE-FOCK CALCULATIONS OF HYPERFINE-INDUCED TRANSITIONS IN HELIUM-LIKE IONS

被引:23
作者
ABOUSSAID, A
GODEFROID, MR
JONSSON, P
FISCHER, CF
机构
[1] LUND INST TECHNOL, DEPT PHYS, S-22100 LUND, SWEDEN
[2] VANDERBILT UNIV, DEPT COMP SCI, NASHVILLE, TN 37235 USA
来源
PHYSICAL REVIEW A | 1995年 / 51卷 / 03期
关键词
D O I
10.1103/PhysRevA.51.2031
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We are investigating the hyperfine quenching of 1s2p 3P0o for the three heliumlike ions F7+19, Na9+23, and Al11+27 in the multiconfigurational Hartree-Fock-Breit-Pauli scheme. The configuration expansions are generated with the active-space method and are increased in a systematic way, allowing the convergence of the calculated parameters to be studied. A careful comparison is done with the pioneering work of Mohr using a perturbation approach [Beam-Foil Spectroscopy, Atomic Structure and Lifetimes, edited by I. Sellin and D. Pegg (Plenum, New York, 1976), Vol. 1, pp. 97-103]. In the present calculations the orbital and spin-dipole magnetic contributions, which were previously neglected, are added to the dominant Fermi contact interaction term and a detailed analysis of the hyperfine induced transition rate is done in order to learn how to get an accurate description of the property in the multiconfiguration Hartree-Fock-Breit-Pauli approximation. © 1995 The American Physical Society.
引用
收藏
页码:2031 / 2039
页数:9
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