Radiative corrections to K_{l3} decays

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dc.creatorCirigliano, V.
dc.creatorKnecht, M.
dc.creatorNeufeld, H.
dc.creatorRupertsberger, H.
dc.creatorTalavera, P.
dc.date2001-10-11
dc.date.accessioned2026-07-07T10:32:55Z
dc.date.available2026-07-07T10:32:55Z
dc.descriptionWe present a complete calculation of the K_{l3} decays K^+ --> pi^0 l^+ nu_l and K^0 --> pi^- l^+ nu_l to O(p^4, (m_d-m_u) p^2, e^2 p^2) in chiral perturbation theory with virtual photons and leptons. We introduce the concept of generalized form factors and kinematical densities in the presence of electromagnetism, and propose a possible treatment of the real photon emission in K^+_{l3} decays. We illustrate our results by applying them to the extraction of the Kobayashi--Maskawa matrix element |V_{us}| from the experimental K^+_{e3} decay parameters.
dc.description13 pages
dc.identifierhttps://arxiv.org/abs/hep-ph/0110153
dc.identifierhttp://arxiv.org/abs/hep-ph/0110153
dc.identifierEur.Phys.J.C23:121-133,2002
dc.identifierdoi:10.1007/s100520100825
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178927
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRadiative corrections to K_{l3} decays
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