# Electron mass singularities in semileptonic kaon decays

@article{Seng2022ElectronMS,
title={Electron mass singularities in semileptonic kaon decays},
author={Chien Yeah Seng and William Joseph Marciano and Ulf-G. Meissner},
journal={Physical Review D},
year={2022}
}
• Published 3 June 2022
• Physics
• Physical Review D
We show that recent improvements in the O ( α ) long-distance quantum electrodynamics (QED) corrections to the radiative inclusive K e 3 decay rate using the Sirlin representation are free from infrared divergences and collinear electron mass singularities in the limit m e → 0, as predicted by the Kinoshita-Lee-Nauenberg theorem. We also verify that in massless QED with the simultaneous dimensional regularization of QED photon infrared divergences and electron mass singularities leads to the…

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