TTP09-14 CKM ELEMENTS FROM SQUARK-GLUINO LOOPS

TTP09-14 CKM ELEMENTS FROM SQUARK-GLUINO LOOPS

TTP09-14 CKM ELEMENTS FROM SQUARK-GLUINO LOOPS

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 $\delta^{d\,LR}_{ij}$, $j>i$, are
 stronger than the bounds from flavour-changing neutral current (FCNC)
 processes if gluino and squarks are heavier than 500$\,\gev$. 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 onl

y $Y^q_{33}$

 is different from zero at tree-level and all other Yukawa couplings are generated

radiatively. This model solves the SUSY flavour as well as the SUSY CP problem. The presented results are published in \cite{Crivellin:2008mq}.

Andreas Crivellin
To appear in the proceedings of 44th Rencontres de Moriond EW 2009: Electroweak Interactions and Unified Theories, La Thuile, Italy, 7-14 Mar 2009.
PDF PostScript arXiv
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