Aspects of radiative K+ e3 decays

B Kubis, Eike Müller, J Gasser, M Schmid

Research output: Contribution to journalArticlepeer-review

Abstract

We re-investigate the radiative charged kaon decay K±→π0e±νeγ [Ke3γ ±] in chiral perturbation theory, merging the chiral expansion with Low’s theorem. We thoroughly analyze the precision of the predicted branching ratio relative to the non-radiative decay channel. Structure dependent terms and their impact on differential decay distributions are investigated in detail, and the possibility to see effects of the chiral anomaly in this decay channel is emphasized.
Original languageEnglish
Pages (from-to)557–571
JournalThe European Physical Journal C
Volume50
DOIs
Publication statusPublished - 9 Feb 2007

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