Dipole coefficients in B -> X_s gamma in supersymmetry with large \tanβand explicit CP violation

Abstract

We perform a detailed study of the electric and chromoelectric dipole coefficients in B -> X_s γdecay in a supersymmetric scheme with explicit CP violation. In our analysis, we adopt the minimal flavor violation scheme by taking into account the \tanβ-enhanced large contributions beyond the leading order. We show that the coefficients can deviate from the SM prediction significantly in both real and imaginary directions. Experimental bounds still allow for large deviations from the SM predictions for both dipole coefficients such that the CP asymmetry is as large as \pm 8%. There are further implications of these coefficients for the charmless hadronic and semileptonic B decays. As a direct application of our analysis, we have discussed Λ_b -> Λγdecay.

14 pp, 13 ps figs, a direct application of the computations is given, some figures and references are added

References in corpus (5)

• A Measurement of the Branching Fraction for the Inclusive B --> X(s) gamma Decays with the Belle Detector
• Bounds on flavour violating parameters in supersymmetry
• B -> X_s gamma in Supersymmetry with Explicit CP Violation
• Alternative approach to $b->s\gamma$ in the uMSSM
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Cited by in corpus (12)

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• Obstructed D-Branes in Landau-Ginzburg Orbifolds
• LHC Signatures of Resonant CP Violation in a Minimal Supersymmetric Higgs Sector
• Diffraction as a CP and Lineshape Analyzer for MSSM Higgs Bosons at the LHC
• Resonant CP Violation in MSSM Higgs Production and Decay at $\gamma \gamma$ Colliders
• Solving the SUSY CP problem with flavor breaking F-terms
• Higgs Phenomenology with CPsuperH
• Beyond the Standard Model in B Decays: Three Topics
• Radiative B Decays: Standard Candles of Flavor Physics
• The effect of supersymmetric CP phases on Chargino-Pair Production via Drell-Yan Process at the LHC
• The Neutralino Mass: Correlation With The Charginos