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 title | flavor
|
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 |