The Promising Process to Distinguish Supersymmetric Models with Large tan$\beta$ from the Standard Model: $B\to X_s{\mu }^{+}{\mu }^{-}$

Abstract

It is shown that in supersymmetric models (SUSYMs) the large supersymmetric contributions to $B\to X_s{\mu }^{+}{\mu }^{-}$ come from the Feynman diagrams which consist of exchanging neutral Higgs bosons (NHBs) and the chargino-stop loop and are proportional to $m_b{m}_{\mu }$tan${}^3\beta /m_h^2$ when tan$\beta$ is large and the mass of the lightest neutral Higgs boson m${}_h$ is not too large (say, less than 150 Gev). Numerical results show that the branching ratios of $B\to X_s{\mu }^{+}{\mu }^{-}$ can be enhanced by more than 100% compared to the standard model (SM) and the backward-forward asymmetry of lepton is significantly different from that in SM when tan$\beta \ge 30$.

8 pages, including 2 figures

Cited by in corpus (98)

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