Light-by-Light Scattering Nonlogarithmic Corrections to Hyperfine Splitting in Muonium
High Energy Physics - Phenomenology
2014-02-05 v3 Atomic Physics
Abstract
We consider three-loop corrections to hyperfine splitting in muonium generated by the gauge invariant set of diagrams with virtual light-by-light scattering block. These diagrams produce both recoil and nonrecoil contributions to hyperfine splitting. Recoil corrections are enhanced by large logarithms of the muon-electron mass ratio. Both nonrecoil and logarithmically enhanced radiative-recoil corrections where calculated some time ago. Here we calculate nonlogarithmic radiative-recoil corrections generated by the insertions of the light-by-light scattering block.
Cite
@article{arxiv.1311.1065,
title = {Light-by-Light Scattering Nonlogarithmic Corrections to Hyperfine Splitting in Muonium},
author = {Michael I. Eides and Valery A. Shelyuto},
journal= {arXiv preprint arXiv:1311.1065},
year = {2014}
}
Comments
Minor corrections, version to be published in Phys. Rev. D