PRECISION LIFETIMES FOR THE CA+ 4P 2P LEVELS - EXPERIMENT CHALLENGES THEORY AT THE 1-PERCENT LEVEL

被引：54
|
作者：
JIN, J
CHURCH, DA
机构：
[1] Department of Physics, Texas A and M University, College Station
来源：
PHYSICAL REVIEW LETTERS | 1993年 / 70卷 / 21期
关键词：
D O I：
10.1103/PhysRevLett.70.3213
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The mean lifetimes tau of the Ca+ 4p 2P3/2 and 2P1/2 levels have been measured to almost-equal-to 0.3% precision using a variant of the collinear laser-beam-ion-beam spectroscopy technique. Like previously measured precision lifetimes of light alkali-metal-like systems, these data fall significantly higher than calculations by the most recent multiconfiguration Hartree-Fock and relativistic many-body perturbation theories. Discrepancies between experiment and theory for alkali-metal-like systems have implications for the interpretation of parity-violation research.
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页码：3213 / 3216
页数：4
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