The MSSM with a softly broken U(2)^3 flavor symmetry

Abstract

In this article we review the phenomenological consequences of radiative flavor-violation (RFV) in the MSSM. In the model under consideration the U(3)^3 flavor symmetry of the gauge sector is broken in a first step to U(2)^3 by the top and bottom Yukawa couplings of the superpotential (and possibly also by the bilinear SUSY-breaking terms). In a second step the remaining U(2)^3 flavor symmetry is softly broken by the trilinear A-terms in order to obtain the measured quark masses and the CKM matrix of the Standard Model (SM) at low energies. The phenomenological implications of this model depend on the actual choice of the SUSY breaking A-terms. If the CKM matrix is generated in the down sector (by A^d), Bs->mu^+mu^- receives non-decoupling contributions from Higgs penguins which become important already for moderate values of tan(beta). Also the Bs mixing amplitude can be significantly modified compared to the SM prediction including a potential induction of a new CP-violating phase (which is not possible in the MSSM with MFV).

6 pages, 2 figures. Contribution to the proceedings of the 2011 Europhysics Conference on High Energy Physics (EPS-HEP 2011), Grenoble, July 21-27, 2011

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Cited by in corpus (4)

• Towards the Identification of New Physics through Quark Flavour Violating Processes
• Stringent Tests of Constrained Minimal Flavour Violation through Delta F=2 Transitions
• Searching for the squark flavor mixing in CP violations of Bs -> K+ K- and K0bar K0 decays
• Towards the Identification of New Physics through Correlations between Flavour Observables