One more radiative-recoil correction to the Lamb shift in muonium

Michael I. Eides; Valery A. Shelyuto

One more radiative-recoil correction to the Lamb shift in muonium

Atomic Physics 2026-07-16 v1 High Energy Physics - Phenomenology

Authors: Michael I. Eides , Valery A. Shelyuto

Abstract

We calculate radiative-recoil contribution of order $Z^2\alpha(Z\alpha)^5(m/M)^2m$ to the Lamb shift in muonium. This correction is due to insertion of radiative photons in the heavy line in the two-photon exchange diagrams. Our calculations are inspired by a new round of precise $1S-2S$ and $2S-2P$ experiments currently in progress.

Keywords

muonium Lamb shift radiative-recoil correction two-photon exchange bound state QED

Cite

@article{arxiv.2607.15188,
  title  = {One more radiative-recoil correction to the Lamb shift in muonium},
  author = {Michael I. Eides and Valery A. Shelyuto},
  journal= {arXiv preprint arXiv:2607.15188},
  year   = {2026}
}

Comments

9 pages, 3 figures