The Renormalization Group Evolution of the CKM Matrix

Details The Renormalization Group Evolution of the CKM Matrix The Renormalization Group Evolution of the CKM Matrix

1998-10-13

arxiv.org/abs/hep-ph/9810350v2

Eur.Phys.J.C9:197-211,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex, 31 pages, extensions amsmath, epsfig required The complete paper, including figures, is also available via anonymous ft

Scientific paper

10.1007/s100520050524

We compute the renormalization of the complete CKM matrix in the MSbar scheme and perform a renormalization group analysis of the CKM parameters. The calculation is simplified by studying only the Higgs sector, which for the \beta-function of the CKM matrix is at one loop the same as in the full Standard Model. The renormalization group flow including QCD corrections can be computed analytically using the hierarchy of the CKM parameters and the large mass differences between the quarks. While the evolution of the Cabibbo angle is tiny V_{ub} and V_{cb} increase sizably. We compare our results with the ones in the full Standard Model.

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