Analysis of enhanced {beta} effects in minimal flavor violation GUT scenarios

Journal Article · Sun Oct 01 04:00:00 EDT 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.075003· OSTI ID:20871329

Lunghi, Enrico; Porod, Werner; Vives, Oscar ^[1]

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1. Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510-0500 (United States)

We analyze a minimal supersymmetric standard model (MSSM) taking a minimal flavor violation structure at the GUT scale. We evaluate the parameters at the electroweak scale taking into account the full flavor structure in the evolution of the renormalization group equations. We concentrate mainly on the decay B{sub s}{yields}{mu}{sup +}{mu}{sup -} and its correlations with other observables like BR(b{yields}s{gamma}), BR(b{yields}sl{sup +}l{sup -}), {delta}M{sub B{sub s}} and the anomalous magnetic moment of the muon. We restrict our analysis to the regions in parameter space consistent with the dark matter constraints. We find that the BR(B{sub s}{yields}{mu}{sup +}{mu}{sup -}) can exceed the current experimental limit in the regions of parameter space which are allowed by all other constraints thus providing an additional bound on supersymmetric parameters. This holds even in the constrained MSSM. Assuming a hypothetical measurement of BR(B{sub s}{yields}{mu}{sup +}{mu}{sup -}){approx_equal}10{sup -7}, we analyze the predicted MSSM spectrum and flavor violating decay modes of supersymmetric particles which are found to be small.

• OSTI ID: 20871329
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 7 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B S MESONS
BRANCHING RATIO
CORRELATIONS
FLAVOR MODEL
MAGNETIC MOMENTS
MUONS MINUS
MUONS PLUS
NONLUMINOUS MATTER
PARTICLE DECAY
RENORMALIZATION
SPARTICLES
STANDARD MODEL
SUPERSYMMETRY