Ckm Elements from Squark-gluino Loops

نویسنده

  • ANDREAS CRIVELLIN
چکیده

I present results for the finite renormalization of the Cabibbo-Kobayashi-Maskawa (CKM) matrix induced by gluino–squark diagrams in the MSSM with non-minimal sources of flavour violation. Subsequently I derive bounds on the flavour–off–diagonal elements of the squark mass matrices by requiring that the radiative corrections to the CKM elements do not exceed the experimental values. The constraints on the associated dimensionless quantities δ LR ij , j > i, are stronger than the bounds from flavour-changing neutral current (FCNC) processes if gluino and squarks are heavier than 500GeV. The results imply that it is still possible to generate all observed flavour violation from the soft supersymmetry-breaking terms without conflicting with present-day data on FCNC processes. Therefore we reappraise the idea that only Y q

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تاریخ انتشار 2009