English

Comment on "A phenomenological $\pi^- p$ scattering length from pionic hydrogen''

High Energy Physics - Phenomenology 2022-06-07 v2 Nuclear Theory

Abstract

This short technical note addresses a number of issues regarding the estimates of the 2004 paper by Ericson, Loiseau, and Wycech for the corrections δϵ\delta_\epsilon and δΓ\delta_\Gamma, which aim at the removal of the effects of electromagnetic origin from the measurements of the strong-interaction shift ϵ1s\epsilon_{1s} and of the total decay width Γ1s\Gamma_{1s} of the ground state in pionic hydrogen.

Keywords

Cite

@article{arxiv.2205.14441,
  title  = {Comment on "A phenomenological $\pi^- p$ scattering length from pionic hydrogen''},
  author = {Evangelos Matsinos},
  journal= {arXiv preprint arXiv:2205.14441},
  year   = {2022}
}

Comments

Nine pages. Minor changes to the first version; correction of Ref. [6]

R2 v1 2026-06-24T11:31:52.267Z