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Supergravity and the b→ s,γ decay

1995/09/26 by B. de Carlos, de Carlos, B., J. A. Casas +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9509394

7 pages, latex+sprocl.sty (appended at the end), 4 figures uuencoded. Based on a talk given by B. de Carlos at the International Workshop on Elementary Particle Physics: Present and Future, Valencia (Spain) 5-9 June 1995

arxiv created 1995/09/26 · arxiv updated 2009/11/30

Abstract

We evaluate the branching ratio BR(b→ s,γ) in the minimal supersymmetric standard model (MSSM), determining the corresponding phenomenological restrictions on two attractive supergravity scenarios, namely minimal supergravity and a class of models with a natural solution to the μ problem. We have included in the calculation some one--loop refinements that have a substantial impact on the results. It is stressed the fact that an eventual improvement of the experimental bounds of order 10-4 would strengthen the restrictions on the MSSM dramatically. This would be enough to discard these supergravity scenarios with μ<0 if no discrepancy is found with the standard model prediction, while for μ>0 there will remain low-energy windows.

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