Simple Approach to Renormalize the Cabibbo-Kobayashi-Maskawa Matrix

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dc.creatorKniehl, Bernd A.
dc.creatorSirlin, Alberto
dc.date2006-08-29
dc.date2006-10-20
dc.date.accessioned2026-07-07T10:25:20Z
dc.date.available2026-07-07T10:25:20Z
dc.descriptionWe present an on-shell scheme to renormalize the Cabibbo-Kobayashi-Maskawa (CKM) matrix. It is based on a novel procedure to separate the external-leg mixing corrections into gauge-independent self-mass and gauge-dependent wave-function renormalization contributions, and to implement the on-shell renormalization of the former with non-diagonal mass counterterm matrices. Diagonalization of the complete mass matrix leads to an explicit CKM counterterm matrix, which automatically satisfies all the following important properties: it is gauge independent, preserves unitarity, and leads to renormalized amplitudes that are non-singular in the limit in which any two fermions become mass degenerate.
dc.description9 pages, 1 figure, minor changes in the text, new reference included, to appear in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/hep-ph/0608306
dc.identifierhttp://arxiv.org/abs/hep-ph/0608306
dc.identifierPhys.Rev.Lett.97:221801,2006
dc.identifierdoi:10.1103/PhysRevLett.97.221801
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176507
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleSimple Approach to Renormalize the Cabibbo-Kobayashi-Maskawa Matrix
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