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

Crivellin, Andreas; Hofer, Lars; Nierste, Ulrich (2011). The MSSM with a softly broken U(2)^3 flavor symmetry. PoS - proceedings of science Scuola Internazionale Superiore di Studi Avanzati SISSA

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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).

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Theoretical Physics

UniBE Contributor:

Crivellin, Andreas

Subjects:

500 Science > 530 Physics

ISSN:

1824-8039

Publisher:

Scuola Internazionale Superiore di Studi Avanzati SISSA

Language:

English

Submitter:

Esther Fiechter

Date Deposited:

04 Oct 2013 14:26

Last Modified:

07 Dec 2016 12:37

ArXiv ID:

1111.0246

BORIS DOI:

10.7892/boris.9657

URI:

https://boris.unibe.ch/id/eprint/9657 (FactScience: 215425)

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