Constraints on lepton flavor violation in the minimal supersymmetric standard model from the muon anomalous magnetic moment measurement

We establish a correspondence between those Feynman diagrams in the minimal supersymmetric standard model (MSSM) that give supersymmetric contributions to the muon anomalous magnetic moment and those that contribute to the flavor violating processes {mu}{yields}e{gamma} and {tau}{yields}{mu}{gamma}....

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Bibliographic Details
Published in:Physical review. D, Particles and fields Particles and fields, 2001-10, Vol.64 (7), Article 075015
Main Authors: Chacko, Z., Kribs, Graham D.
Format: Article
Language:English
Subjects:
BNL
BRANCHING RATIO
DECAY
FEYNMAN DIAGRAM
LEPTONS
MAGNETIC MOMENTS
MUONS
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
STANDARD MODEL
SUPERSYMMETRY
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Summary:We establish a correspondence between those Feynman diagrams in the minimal supersymmetric standard model (MSSM) that give supersymmetric contributions to the muon anomalous magnetic moment and those that contribute to the flavor violating processes {mu}{yields}e{gamma} and {tau}{yields}{mu}{gamma}. Using current experimental limits on the branching ratios of these decay modes, combined with the assumption of a supersymmetric contribution to the muon anomalous magnetic moment, we establish bounds on the size of the lepton flavor violating soft masses in the MSSM largely independent of assumptions about other supersymmetric parameters. If the deviation measured at Brookhaven National Laboratory is from supersymmetry, we find the bounds m{sup 2} {sub e{mu}}/{bar m}{sup 2}{approx}
ISSN:0556-2821
1089-4918
DOI:10.1103/PhysRevD.64.075015