The contribution of pseudoscalar and axial-vector mesons to hyperfine structure of muonic hydrogen

被引：2

作者：

Dorokhov, A. E. ^{[1
]}

Kochelev, N. I. ^{[1
,2
]}

Martynenko, A. P. ^{[3
]}

Martynenko, F. A. ^{[3
]}

Radzhabov, A. E. ^{[2
,4
]}

Faustov, R. N. ^{[5
]}

机构：

[1] Joint Inst Nucl Res, BLTP, Dubna 141980, Moscow Region, Russia

[2] Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China

[3] Samara Univ, Samara 443086, Russia

[4] RAS, Matrosov Inst Syst Dynam & Control Theory SB, Irkutsk 664033, Russia

[5] RAS, CSC, FRC, Inst Informat Educ, Moscow 119333, Russia

来源：

XVII WORKSHOP ON HIGH ENERGY SPIN PHYSICS (DSPIN-2017) | 2018年 / 938卷

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

LAMB SHIFT; PROTON; ZEMACH; SPIN;

D O I：

10.1088/1742-6596/938/1/012042

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the framework of the quasipotential method in quantum electrodynamics we calculate the contribution of light pseudoscalar (PS) and axial-vector (AV) mesons to the interaction operator of a muon and a proton in muonic hydrogen atom. The coupling of mesons with the muon is via two-photon intermediate state. The parametrization of the transition form factor of two photons into PS and AV mesons, based on the experimental data on the transition form factors and QCD asymptotics, is used. Numerical estimates of the contributions to the hyperfine structure of the spectrum of the S and P levels are presented. It is shown that such contribution to the hyperfine splitting in muonic hydrogen is rather important for a comparison with precise experimental data.

引用

页数：6

共 39 条

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