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

Abstract

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.

arXiv commentLaTeX2e, 15 pages, 4 figures. Computation improved and figures replaced accordingly. Some references added. Main conclusions remain untouched

References in corpus (2)

• QCD Anatomy of B -> X_s gamma Decays
• Direct CP Violation in B -> X_s gamma Decays as a Signature of New Physics

Cited by in corpus (8)

• A comprehensive approach to new physics simulations
• An Improved Analysis of $b\to s\gamma$ in Supersymmetry
• Impact of squark generation mixing on the search for gluinos at LHC
• Single top-quark production by strong and electroweak supersymmetric flavor-changing interactions at the LHC
• Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
• Higgs masses and Electroweak Precision Observables in the Lepton-Flavor-Violating MSSM
• Effects of Supersymmetric Threshold Corrections on High-Scale Flavor Textures
• Flavor Mixing Phenomenology in Supersymmetric Models