Second-order corrections to the wave function at the origin in muonic hydrogen and pionium

被引：23

作者：

Ivanov, Vladimir G. ^{[1
,2
]}

Korzinin, Evgeny Yu. ^{[2
]}

Karshenboim, Savely G. ^{[2
,3
]}

机构：

[1] Pulkovo Observ, St Petersburg 196140, Russia

[2] DI Mendeleev Inst Metrol VNIIM, St Petersburg 198005, Russia

[3] Max Planck Inst Quantum Opt, D-85748 Garching, Germany

来源：

PHYSICAL REVIEW D | 2009年 / 80卷 / 02期

关键词：

LAMB-SHIFT;

D O I：

10.1103/PhysRevD.80.027702

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Nonrelativistic second-order corrections to the wave function at the origin in muonic and exotic atoms are considered. The corrections are due to the electronic vacuum polarization. Such corrections are of interest due to various effective approaches, which take into account QED and hadronic effects. The wave function at the origin plays a key role in the calculation of the pionium lifetime, various finite nuclear size effects, and the hyperfine splitting. The results are obtained for the 1s and 2s states in pionic and muonic hydrogen and deuterium and in pionium, a bound system of pi(+) and pi(-). Applications to the hyperfine structure and the Lamb shift in muonic hydrogen are also considered.

引用

页数：4

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