Interplay between Hbs and bsgamma in the MSSM with Non-Minimal Flavour Violation

Details Interplay between Hbs and bsgamma in the MSSM with Non-Minimal Flavour Violation Interplay between Hbs and bsgamma in the MSSM with Non-Minimal Flavour Violation

2005-12-23

arxiv.org/abs/hep-ph/0512315v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX2e, 15 pages, 4 figures. Computation improved and figures replaced accordingly. Some references added. Main conclusions r

Scientific paper

We investigate the constraints on flavour-changing neutral heavy Higgs-boson decays H-> b \bar s from b -> s gamma bounds on the flavour-mixing parameters of the MSSM with non-minimal flavour violation (NMFV). In our analysis we include the contributions from the SM and new physics due to general flavour mixing in the squark mass matrices. We study the case of one and two non-zero flavour-mixing parameters and find that in the latter case the interference can raise the Higgs flavour-changing branching ratios by one or two orders of magnitude with respect to previous predictions based on a single non-zero parameter and in agreement with present constraints from $B$ physics. In the course of our work we developed a new "FeynArts" model file for the NMFV MSSM and added the necessary code for the evaluation to "FormCalc". Both extensions are publicly available.

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