T-odd correlations in radiative K+ ℓ3 decays and chiral perturbation theory

Eike Müller, B Kubis, UG Meißner

Research output: Contribution to journalArticlepeer-review

Abstract

The charged kaon decay channel K+ ℓ3γ allows for studies of direct CP violation, possibly due to non-standard mechanisms, with the help of T-odd correlation variables. In order to be able to extract a CP-violating signal from experiment, it is necessary to understand all possible standard model phases that also produce T-odd asymmetries. We complement earlier studies by considering strong interaction phases in hadronic structure functions that appear at higher orders in chiral perturbation theory, and we compare our findings to other potential sources of asymmetries.
Original languageEnglish
Pages (from-to)427–440
JournalThe European Physical Journal C
Volume48
DOIs
Publication statusPublished - 27 Oct 2006

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