Hadronic light-by-light scattering contribution to 1S-2S transition in muonium

被引：0

作者：

Korobov, V. I. ^{[1
,2
]}

Martynenko, F. A. ^{[1
]}

Martynenko, A. P. ^{[1
]}

V. Eskin, A. ^{[1
]}

机构：

[1] Samara Natl Res Univ, Phys Dept, Samara 443086, Russia

[2] JINR, BLTP, Dubna 141980, Russia

来源：

PHYSICAL REVIEW C | 2025年 / 111卷 / 02期

基金：

俄罗斯科学基金会;

关键词：

PSEUDOSCALAR MESONS; HYPERFINE-STRUCTURE;

D O I：

10.1103/PhysRevC.111.025202

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We study the hadronic light-by-light scattering contribution to the energy interval 1S-2S in muonium. Various amplitudes of interaction of a muon and an electron are constructed, in which the effect of hadronic scattering of light by light is determined using the transition form factor of two photons into a meson. Their contributions to the particle interaction operator in the case of S states are obtained in integral form, and their contributions to the energy spectrum are obtained in numerical form. The contributions of pseudoscalar, scalar, and axial vector mesons are taken into account.

引用

页数：12