Enhancement of Br(B_d -> mu^+mu^-)/Br(B_s -> mu^+mu^-) in Supersymmetric Unified Models

Abstract

We explain the 2.3 sigma deviation in the recent measurements of the neutral B mesons decay into muon pairs from the standard model prediction in the framework of supersymmetric grand unified models using anti-symmetric coupling as a new source of flavor violation. We show a correlation between the B_d -> mu^+mu^- decay and the CP phase in the B_d -> J/psi K decay and that their deviations from the standard model predictions can be explained after satisfying constraints arising from various hadronic and leptonic rare decay processes, B-bar{B}, K-bar{K} oscillations data and electric dipole moments of electron and neutron. The allowed parameter space is typically represented by pseudoscalar Higgs mass m_A < 1 TeV and tan beta_H (= {v_u}/{v_d}) < 20 for squark and gluino masses around 2 TeV.

arXiv comment6 pages, 3 figures

References in corpus (22)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• B_{s,d} -> l+ l- in the Standard Model with Reduced Theoretical Uncertainty
• Universal Unitarity Triangle and Physics Beyond the Standard Model
• Higgs-Mediated $B^0->{\mu }^{+}{\mu }^{-}$ in Minimal Supersymmetry
• Signals For Supersymmetric Unification
• Lepton-Flavor Violation in the Supersymmetric Standard Model with Seesaw-Induced Neutrino Masses
• $\Delta M_{d,s}$, $B_{d,s}^0\to {\mu }^{+}{\mu }^{-}$ and $B\to X_s\gamma$ in Supersymmetry at Large $\tan \beta$
• Dileptonic decay of B_s meson in SUSY models with large tanβ
• Higgs-mediated FCNC in Supersymmetic Models with Large $\tan \beta$
• Search for a CP-odd Higgs boson decaying to $Zh$ in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
• Correlation between Delta M_s and B^0_{s,d} --> mu^+ mu^- in Supersymmetry at Large tan beta
• Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi
• Measurement of the CP-violating phase ${\varphi }_s^{J/\psi \varphi }$ using the flavor-tagged decay $B_s^0\to J/\psi \varphi$ in 8 fb${}^{-1}$ of $p \barp$ collisions
• CP violation in B_d \to ϕK_S in SUSY GUT with right-handed neutrinos
• Measurement of the Bottom-Strange Meson Mixing Phase in the Full CDF Data Set
• $\Delta M_s/\Delta M_d$, $\sin 2\beta$ and the angle $\gamma$ in the Presence of New $\Delta F=2$ Operators
• Inclusive Decay Rate for $B\to X_d+\gamma$ in Next-to-Leading Logarithmic Order and CP Asymmetry in the Standard Model
• B -> X_d gamma and constraints on new physics
• Proton Decay and Flavor Violating Thresholds in SO(10) Models
• Implication of possible observation of enhanced Bd0 --> mu+ mu- decay
• Modification of the Unitarity Relation for sin2beta-Vub in Supersymmetric Models

Cited by in corpus (2)

• Global fits of GUT-scale SUSY models with GAMBIT
• Flavor Physics and CP Violation