CP Violating Contribution to Delta Gamma in the B_s System from Mixing with a Hidden Pseudoscalar

Abstract

Recent evidence for a CP violating asymmetry in the semileptonic decays of B_s mesons cannot be accommodated within the Standard Model. Such an asymmetry can be explained by new physics contributions to Delta B=2 components of either the mass matrix or the decay matrix. We show that mixing with a hidden pseudoscalar meson with a mass around 5 GeV can result in a new CP violating contribution to the mixing and can resolve several anomalies in this system including the width difference, the average width and the charge asymmetry. We also discuss the effects of the hidden meson on other b physics observables, and present viable decay modes for the hidden meson. We make predictions for new decay channels of B hadrons, which can be tested at the Tevatron, the LHC and B-factories.

18 pages, 4 figures, 2 tables

References in corpus (10)

• Neutral B Meson Mixing in Unquenched Lattice QCD
• Testing New Indirect CP Violation
• On Indirect CP Violation and Implications for D0-\overline{D0} and Bs -\overline{Bs} mixing
• Ultra Visible Warped Model From Flavor Triviality & Improved Naturalness
• Comment on new physics contributions to Gamma_{12}^s
• The like-sign dimuon charge asymmetry in SUSY models
• Z-mediated charge and CP asymmetries and FCNCs in $B_{d,s}$ processes
• Addendum to: Implications of the measurements of B_s-B_s bar mixing on SUSY models
• Observation of Bs->Ds(*)+Ds(*)- using e+e- collisions and a determination of the Bs-Bsbar width difference ΔΓ_s
• Status of the Unitarity Triangle analysis in UTfit

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• 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
• Reevaluating R-parity Violating Supersymmetry Effects in B_s^0-\bar{B}_s^0 Mixing
• An upper limit on CP violation in the $B_s^0-{\bar{B}}_s^0$ system
• Flavour Theory and the LHC Era