Bs Mixing and Electric Dipole Moments in MFV

Abstract

We analyze the general structure of four-fermion operators capable of introducing CP-violation preferentially in Bs mixing within the framework of Minimal Flavor Violation. The effect requires a minimum of O(Yu^4 Yd^4) Yukawa insertions, and at this order we find a total of six operators with different Lorentz, color, and flavor contractions that lead to enhanced Bs mixing. We then estimate the impact of these operators and of their close relatives on the possible sizes of electric dipole moments (EDMs) of neutrons and heavy atoms. We identify two broad classes of such operators: those that give EDMs in the limit of vanishing CKM angles, and those that require quark mixing for the existence of non-zero EDMs. The natural value for EDMs from the operators in the first category is up to an order of magnitude above the experimental upper bounds, while the second group predicts EDMs well below the current sensitivity level. Finally, we discuss plausible UV-completions for each type of operator.

11 pages; v2: references added

References in corpus (14)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Improved limit on the permanent electric dipole moment of 199Hg
• General Minimal Flavor Violation
• Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay
• Evidence for an anomalous like-sign dimuon charge asymmetry
• Flavor Changing Neutral Currents, an Extended Scalar Sector, and the Higgs Production Rate at the LHC
• Supersymmetric models with minimal flavour violation and their running
• CP violation in B_s mixing from heavy Higgs exchange
• B-Meson Observables in the Maximally CP-Violating MSSM with Minimal Flavour Violation
• Implications of the dimuon CP asymmetry in B_{d,s} decays
• Electric dipole moment constraints on minimal electroweak baryogenesis
• Comment on new physics contributions to Gamma_{12}^s
• Prospects and Constraints for Vector-like MFV Matter at LHC
• Testing the CKM Picture of Flavour and CP Violation in Rare K and B Decays and Particle-Antiparticle Mixing

Cited by in corpus (14)

• Anatomy of New Physics in B-Bbar mixing
• Electric Dipole Moments in Two-Higgs-Doublet Models
• Dark Matter from Minimal Flavor Violation
• Ultra Visible Warped Model From Flavor Triviality & Improved Naturalness
• A simple relation for B_s-mixing
• On theories of enhanced CP violation in B_s,d meson mixing
• Anomalous B meson mixing and baryogenesis in a two Higgs doublet model with top-charm flavor violation
• CP Violating Contribution to Delta Gamma in the B_s System from Mixing with a Hidden Pseudoscalar
• Triangle Relation of Dark Matter, EDM and CP Violation in B0 Mixing in a Supersymmetric Q6 Model
• Weak decays of ${\bar{B}}_s$ mesons
• Implications of large dimuon CP asymmetry in B_{d,s} decays on minimal flavor violation with low tan beta
• MFV Reductions of MSSM Parameter Space
• Like-sign dimuon asymmetry of B0 meson and LFV in SU(5) SUSY GUT with S4 flavor symmetry
• Flavour Theory and the LHC Era