2008

Electromagnetic effects in Kl3 decays

Cirigliano, Vincenzo, Giannotti, Maurizio, Neufeld, Helmut

Understand

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.

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