CP Violating Lepton Asymmetry from B Decays in Supersymmetric Grand Unified Theories

Abstract

We investigate the effect of the dimuon CP asymmetry from the B decay modes, recently observed at 3.2 sigma deviation from the Standard Model (SM) by the D0 collaboration, in the context of SU(5) and SO(10) GUT models. We exhibit that a large amount of flavor violation between the second and the third generation is generated due to the large neutrino atmospheric mixing angle and this flavor violation can be responsible for the observed large CP asymmetry due to the presence of new phases (not present in the CKM matrix) in the Yukawa couplings. We also study the implication of the parameter space in these GUT models with large CP violating lepton asymmetry for different phenomenologies, e.g., Br(tau -> mu + gamma), Br(B_s -> mu + mu) at the Fermilab, direct detection of dark matter (DM) in the ongoing detectors and measurement of muon flux from solar neutrinos at the IceCube experiment.

23 pages, 5 figures

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Cited by in corpus (13)

• Anatomy of New Physics in B-Bbar mixing
• A simple relation for B_s-mixing
• Neutral Gauge Boson Contributions to the Dimuon Charge Asymmetry in B Decays
• The D0 same-charge dimuon asymmetry and possibile new CP violation sources in the $B_s-{\bar{B}}_s$ system
• Triangle Relation of Dark Matter, EDM and CP Violation in B0 Mixing in a Supersymmetric Q6 Model
• Like-sign dimuon charge asymmetry in Randall-Sundurm model
• Direct and Indirect Detection and LHC Signals of Bino-Higgsino Dark Matter
• Long-Distance Contribution to ΔΓs/Γs of the $B_s-{\bar{B}}_s$ System
• Reconciling anomalous measurements in $B_s-{\bar{B}}_s$ mixing: the role of CPT-conserving and CPT-violating new physics
• Flavor Physics in an SO(10) Grand Unified Model
• Dimuon CP Asymmetry in B Decays and Wjj Excess in Two Higgs Doublet Models
• B_s --> mu+mu- in Supersymmetric Grand Unified Theories
• Flavour Theory and the LHC Era