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Report number arXiv:0902.4880 ; DAMTP-2008-112 ; LTH-811 ; DO-TH-08-08 ; LAPTH-1292-08 ; DAMTP-2008-112 ; LTH 811 ; DO-TH 08-08 ; LAPTH-1292-08
Title Flavour Violation in Anomaly Mediated Supersymmetry Breaking
Related titleflavor
Author(s) Allanach, B.C. (Cambridge U., DAMTP) ; Hiller, G. (Dortmund U.) ; Jones, D.R.T. (Liverpool U., Dept. Math. ; CERN) ; Slavich, P. (Annecy, LAPTH ; Paris, LPTHE)
Publication 2009
Imprint 02 Mar 2009
Number of pages 32 p, 32
Note Comments: 32 pages, 8 figures
In: JHEP 04 (2009) 088
DOI 10.1088/1126-6708/2009/04/088
Subject category Particle Physics - Phenomenology
Abstract We study squark flavour violation in the anomaly mediated supersymmetry broken (AMSB) minimal supersymmetric standard model. Analytical expressions for the three-generational squark mass matrices are derived. We show that the anomaly-induced soft breaking terms have a decreasing amount of squark flavour violation when running from the GUT to the weak scale. Taking into account inter-generational squark mixing, we work out non-trivial constraints from B -> Xs gamma and Bs -> mu mu, which complement each other, as well as B -> tau nu decays. We further identify a region of parameter space where the anomalous magnetic moment of the muon and the B -> Xs gamma branching ratio are simultaneously accommodated. Since anomaly mediation is of the minimal flavour-violating type, the generic flavour predictions for this class of models apply, including a CKM-induced (and hence small) Bs-Bsbar-mixing phase.
Copyright/License Open Access

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 Record created 2009-03-02, last modified 2023-03-12


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