New constraints on supersymmetric models from b -> s gamma
arXiv:0710.3791 · doi:10.1088/1126-6708/2007/12/026
Abstract
We provide an analysis of the parameter space of several supersymmetry breaking scenarios such as the minimal supergravity (mSUGRA) model and the non universal Higgs mass (NUHM) framework, as well as the Anomaly Mediated Supersymmetry Breaking (AMSB) and the Gauge Mediated Supersymmetry Breaking (GMSB) models, in the light of a novel observable in b -> s gamma transitions, i.e. the isospin symmetry breaking in the exclusive B -> K* gamma decays. We find that in many cases, this observable provides severe restrictions on the allowed parameter space regions for the mentioned models. Moreover, we provide a few examples of investigations of the physical masses of supersymmetric particles and search for the excluded values. The constraints from the branching ratio associated to b -> s gamma are also presented here for all the examined parameter space regions. A comparison with B_s -> mu+ mu- branching ratio has also been performed.
16 pages, 11 figures (updated values for the b -> s gamma branching ratio, one figure added)
References in corpus (8)
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- SuperIso: A program for calculating the isospin asymmetry of B -> K* gamma in the MSSM
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- SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
- SuperIso: A program for calculating the isospin asymmetry of B -> K* gamma in the MSSM
- Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
- Four-lepton LHC events from MSSM Higgs boson decays into neutralino and chargino pairs
- Global Fits of the Large Volume String Scenario to WMAP5 and Other Indirect Constraints Using Markov Chain Monte Carlo
- Panglossian Prospects for Detecting Neutralino Dark Matter in Light of Natural Priors
- The long-lived stau as a thermal relic
- Neutralino Dark Matter as the Source of the WMAP Haze