Measurement of QED and hyperfine splitting in the 2s1/2-2p3/2 X-ray transition in Li-like 209Bi80+

被引：163
|
作者：
Beiersdorfer, P [1 ]
Osterheld, AL [1 ]
Scofield, JH [1 ]
Lopez-Urrutia, JRC [1 ]
Widmann, K [1 ]
机构：
[1] Univ Calif Lawrence Livermore Natl Lab, Dept Phys & Space Technol, Livermore, CA 94551 USA
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.80.3022
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A measurement of the 2s(1/2)-2p(3/2) x-ray transition in trapped Li-like Bi80+ ions was made that resolved the 0.820 +/- 0.026 eV hyperfine splitting of the (1s(2)2S)(F=4,5) ground configuration, providing the first such measurement in a multielectron highly charged ion. The intensity ratio of the two components is shown to be a new electron density diagnostic. The statistically averaged 2788.139 +/- 0.039 eV energy of the 2s(1/2)-2p(3/2) transition provides the most accurate test of QED in a high-Z ion to date, demonstrating the need for including higher-order terms in the Lamb shift calculations.
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页码：3022 / 3025
页数：4
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