Renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions

被引：13
|
作者：
Pineda, A
机构：
[1] Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Catalonia, Spain
[2] Univ Barcelona, IFAE, E-08028 Barcelona, Catalonia, Spain
来源：
PHYSICAL REVIEW A | 2002年 / 66卷 / 06期
关键词：
D O I：
10.1103/PhysRevA.66.062108
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We. obtain the next-to-next-to-leading-logarithmic renormalization-group improvement of the spectrum of hydrogenlike atoms with massless fermions by using potential NRQED. These results can also be applied to the computation of the muonic hydrogen spectrum where we are able to reproduce some known double logarithms at O(malpha(s)(6)). We compare with other formalisms dealing with logarithmic resummation available in the literature.
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页数：5
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