English

Electromagnetic effects in Kl3 decays

High Energy Physics - Phenomenology 2009-01-06 v1

Abstract

We study the radiative corrections to all Kl3 decay modes to leading non-trivial order in the chiral effective field theory, working with a fully inclusive prescription on real photon emission. We present new results for Kmu3 modes and update previous results on Ke3 modes. Our analysis provides important theoretical input for the extraction of the CKM element Vus from Kl3 decays.

Cite

@article{arxiv.0807.4507,
  title  = {Electromagnetic effects in Kl3 decays},
  author = {Vincenzo Cirigliano and Maurizio Giannotti and Helmut Neufeld},
  journal= {arXiv preprint arXiv:0807.4507},
  year   = {2009}
}

Comments

14 pages. 2 figures, 2 tables

R2 v1 2026-06-21T11:05:09.910Z