Journal Article

PreJuSER-55019

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png T-odd correlations in radiative K+ l3 decays and chiral pertubation theory

Müller, E. H. ; Kubis, B.FZJ* ; Meissner, U. G.FZJ*

2006
Springer Berlin

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Please use a persistent id in citations: http://hdl.handle.net/2128/10569  doi:10.1140/epjc/s10052-006-0033-5

Abstract: The charged kaon decay channel K-l3 gamma(+) 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.

Keyword(s): K+: semileptonic decay ; K+: radiative decay ; CP: violation ; time reversal: violation ; perturbation theory: chiral ; Feynman graph: higher-order ; structure function: hadronic ; K+: width ; differential cross section: asymmetry ; current: weak interaction ; effective Lagrangian ; numerical calculations

Note: Record converted from VDB: 12.11.2012

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Contributing Institute(s):

1. Institut 3 (Theoretische Kernphysik) (IKP-TH)

Research Program(s):

1. Physik der Hadronen und Kerne (P53)

Appears in the scientific report 2006

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