Determination of the 133Cs and proton mass ratio using highly charged ions

被引：46
|
作者：
Carlberg, C
Fritioff, T
Bergström, I
机构：
[1] Stockholm Univ, Dept Phys, S-10405 Stockholm, Sweden
[2] Manne Siegbahn Lab, S-10405 Stockholm, Sweden
来源：
PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 22期
关键词：
D O I：
10.1103/PhysRevLett.83.4506
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The ratio of the Cs-133 and proton mass has been determined by comparing the cyclotron frequencies of highly charged (about 40+) Cs,Cs-12(4+), and H-2(+) ions in a Penning trap. This ratio is determined to 131.91535591(24)(15), which is a tenfold improvement in accuracy over the previously determined value. This result may be used to improve the knowledge of the line structure constant alpha, in a way which does not require detailed QED calculations.
引用
收藏
页码：4506 / 4509
页数：4
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