Aspects of radiative K^+_e3 decays

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We re-investigate the radiative charged kaon decay K+- --> pi0 e+- nu_e gamma 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.
15 pages, 6 figures

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High Energy Physics - Phenomenology, High Energy Physics - Experiment

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http://salesiana.dossiersoluciones.com/handle/123456789/188202

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/hep-ph/0611366
 http://arxiv.org/abs/hep-ph/0611366
 Eur.Phys.J.C50:557-571,2007
 doi:10.1140/epjc/s10052-007-0215-9

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arXiv