B_s -> mu^+ mu^- and B -> X_s mu^+ mu^- in MSSM

Abstract

Pure leptonic and semileptonic rare B decays, $B_s\to {\mu }^{+}{\mu }^{-}$ and $B\to X_s{\mu }^{+}{\mu }^{-}$ in the minimal supersymmetric Standard Model (MSSM), in particular, gluino and neutralino contributions to the decays, are discussed under Br($B\to X_s\gamma$) and other experimental constraints . The general scalar quark mass matrices as the new sources of flavor violation are considered. We present Wilson coefficients of $bs$ transitions from $\gamma$, $Z$, and neutral Higgs boson penguin diagrams by using vertex mixing method to deal with scalar down-type quark flavor changing and also give their expressions in MIA to show different sources of enhancements. We find that under the experimental constraints, with large mixing of left-handed and right-handed sbottom, $C_{10}^{(\prime )}$ can be enhanced by 10% compared with SM, in two cases, heavy gluino and fine-tuning between ${\delta }_{23}^{dLL}$(${\delta }_{23}^{dRR}$) and ${\delta }_{23}^{dLR}$(${\delta }_{23}^{dRL}$) terms in $C_7^{(\prime )}$. Particularly, $C_{10}$ and $C_{10}^{\prime }$ can reach a 20% enhancement in some regions of parameters under experimental constraints. When CP-odd Higgs $A^0$ is not too heavy ($\sim 250$GeV), and $\tan \beta$ is large ($\sim 40$), neutral Higgs boson penguins with gluino and down-type squark in the loop can significantly contribute to the $bs$ transition and the contributions can compete with those due to the chargino and up-type squark loop.

23 pages, 6 figures, discussions about B^0_s - B^0_s bar mixing and dilepton spectra of B -> X_s mu^+ mu^- added, corrected some typos and references added, version to appear in Journal

References in corpus (5)

• Higgs-mediated leptonic decays of B_s and B_d mesons as probes of supersymmetry
• B_{s,d} -> l^+ l^- and K_L -> l^+ l^- in SUSY models with non-minimal sources of flavour mixing
• Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
• Weakened Constraints from $b\to s\gamma$ on Supersymmetry Flavor Mixing Due to Next-To-Leading-Order Corrections
• Search for new physics in $B_{d,s}\to l^{+}{l}^{-}$

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