Physical renormalization condition for the quark-mixing matrix

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dc.creatorDenner, A.
dc.creatorKraus, E.
dc.creatorRoth, M.
dc.date2004-02-12
dc.date2004-07-23
dc.date.accessioned2026-07-07T10:49:00Z
dc.date.available2026-07-07T10:49:00Z
dc.descriptionWe investigate the renormalization of the quark-mixing matrix in the Electroweak Standard Model. We show that the corresponding counterterms must be gauge independent as a consequence of extended BRS invariance. Using rigid SU(2)_L symmetry, we proof that the ultraviolet-divergent parts of the invariant counterterms are related to the field renormalization constants of the quark fields. We point out that for a general class of renormalization schemes rigid SU(2)_L symmetry cannot be preserved in its classical form, but is renormalized by finite counterterms. Finally, we discuss a genuine physical renormalization condition for the quark-mixing matrix that is gauge independent and does not destroy the symmetry between quark generations.
dc.description20 pages, LaTeX, minor changes, references added
dc.identifierhttps://arxiv.org/abs/hep-ph/0402130
dc.identifierhttp://arxiv.org/abs/hep-ph/0402130
dc.identifierPhys.Rev.D70:033002,2004
dc.identifierdoi:10.1103/PhysRevD.70.033002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/184075
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePhysical renormalization condition for the quark-mixing matrix
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