Large loop effects of extra SUSY Higgs doublets to CP violation in B^0 mixing

Abstract

We consider more than one pair of SU(2)_L doublet Higgs supermultiplets in a generic supersymmetric extension of the standard model, and calculate their one-loop contributions to the soft mass insertions delta_{LL} etc. We find that if large supersymmetry breaking in this sector is realized, the loop effects can give rise to large contributions to the soft mass insertions, meaning that they We apply our result to a recently proposed model based on the discrete Q_6 family group, and calculate the non-diagonal matrix element M_{12} of the neutral meson systems. We focus our attention on the extra phases phi_{d,s}^Delta in B_{d,s}-mixing and flavor-specific CP-asymmetries a_{sl}^{d,s} in neutral B decays and obtain values that can be about one order of magnitude larger than the standard model predictions. Our final results are comparable with the recent experimental observations at D0 and CDF, but they are still about a factor of 5 smaller than the recently measured dimuon asymmetry from D0.

22 pages, 2 figures

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• The D0 same-charge dimuon asymmetry and possibile new CP violation sources in the $B_s-{\bar{B}}_s$ system
• Super Flavorsymmetry with Multiple Higgs Doublets
• Triangle Relation of Dark Matter, EDM and CP Violation in B0 Mixing in a Supersymmetric Q6 Model
• Implications of large dimuon CP asymmetry in B_{d,s} decays on minimal flavor violation with low tan beta
• Like-sign dimuon charge asymmetry in Randall-Sundurm model
• Long-Distance Contribution to ΔΓs/Γs of the $B_s-{\bar{B}}_s$ System
• CP Violating Lepton Asymmetry from B Decays in Supersymmetric Grand Unified Theories
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• Squark flavor mixing and CP asymmetry of neutral $B$ mesons at LHCb
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• CP violating dimuon charge asymmetry in general left-right models
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• SUSY contributions to CP violations in $b\to s$ and $b\to d$ transitions facing on new data
• Direct CP violation of $b\to s\gamma$ and CP asymmetries of non-leptonic B decays in squark flavor mixing
• Searching for the squark flavor mixing in CP violations of Bs -> K+ K- and K0bar K0 decays
• Sensitivity of the squark flavor mixing to the CP violation of K, B0 and Bs mesons
• Flavour Theory and the LHC Era
• Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC