Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1998-03-25
Phys.Rev. D58 (1998) 115003
Physics
High Energy Physics
High Energy Physics - Phenomenology
LaTeX, 31 pages, 3 (color) figures, few minor changes on section 4, a final note and new references added, conclusions unchang
Scientific paper
10.1103/PhysRevD.58.115003
We calculate the inclusive branching ratio for B--> X_s gamma, the inclusive branching ratios and asymmetries for B--> X_s l+ l- and the anomalous magnetic moment g-2 of the muon, within a minimal gauge-mediated SUSY-breaking model which naturally generates a large ratio tan(beta) of Higgs field vacuum expectation values. These predictions are highly correlated with each other, depending on only two fundamental parameters: the superpartner mass scale and the logarithm of a common messenger mass. The predictions for B--> X_s gamma decay and g-2 are in somewhat better agreement with current experiments than the standard model, but a much sharper comparison will soon be possible using new measurements now in progress or under analysis. Moreover we predict large deviations in B--> X_s e+ e- and B--> X_s mu+ mu- asymmetries, and somewhat smaller ones in B--> X_s e+ e- and B--> X_s tau+ tau- branching ratios, which will be detectable in hadronic colliders.
Gabrielli Emidio
Sarid Uri
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