Lifetime calculations in Yb II

被引：100
作者：
Biemont, E [1 ]
Dutrieux, JF
Martin, I
Quinet, P
机构：
[1] Univ Liege, Inst Astrophys, B-4000 Liege, Belgium
[2] Univ Mons, B-7000 Mons, Belgium
[3] Univ Valladolid, Dept Quim Fis, E-47005 Valladolid, Spain
来源：
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1998年 / 31卷 / 15期
关键词：
D O I：
10.1088/0953-4075/31/15/006
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Oscillator strengths and lifetime values for YbII levels have been calculated within the framework of a pseudo-relativistic Hartree-Fock (HFR) approximation combined with a least-squares fitting of the calculated eigenvalues to the observed energy levels. A considerable amount of configuration interaction together with core-polarization effects have been included in the calculations. The quality of the HFR results has been assessed through a comparison with data obtained using the completely independent relativistic quantum defect orbital (RQDO) method. The theoretical lifetimes reported in the present paper are now in good agreement with most of the accurate experimental values available. The origin of the persisting discrepancies is suggested.
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页码：3321 / 3333
页数：13
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