Large CP Violation in B_s Meson Mixing with EDM constraint in Supersymmetry

Abstract

Motivated by the recent measurement of the like-sign dimuon charge asymmetry, we investigate anomalous CP violation in the B_s- bar{B}_s mixing within the supersymmetry. We show that when gluino diagrams dominate supersymmetry contributions, it is very difficult to realize a large B_s- bar{B}_s mixing phase under the constraint from electric dipole moments barring cancellations. This constraint can be ameliorated by supposing superparticles decoupled. In this limit, we find that it is possible to achieve the large CP asymmetry, and the branching ratio of B_s -> mu^+ mu^- tends to become sizable.

20 pages, 5 figures

References in corpus (8)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Averages of b-hadron and c-hadron Properties at the End of 2007
• Direct Limits on the Bs Oscillation Frequency
• Comment on new physics contributions to Gamma_{12}^s
• The like-sign dimuon charge asymmetry in SUSY models
• Addendum to: Implications of the measurements of B_s-B_s bar mixing on SUSY models
• Supersymmetry and CP violation in B^0_s - \bar{B}^0_s mixing and B^0_s -> J/ψϕdecay

Cited by in corpus (7)

• Relating B_s Mixing and B_s -> mu+mu- with New Physics
• Triangle Relation of Dark Matter, EDM and CP Violation in B0 Mixing in a Supersymmetric Q6 Model
• Search for new physics via photon polarization of $b\to s\gamma$
• Probing the high scale SUSY in CP violations of K, B0 and Bs mesons
• 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
• Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC