1109.4145 (Tao Liu et al.)

Electroweak Beautygenesis: From b {\to} s CP-violation to the Cosmic Baryon Asymmetry    [PDF]

Tao Liu, Michael J. Ramsey-Musolf, Jing Shu

We address the possibility that CP-violation in $B_s-\bar B_s$ mixing may help explain the origin of the cosmic baryon asymmetry. We propose a new baryogenesis mechanism - "Electroweak Beautygenesis" - explicitly showing that these two CP-violating phenomena can be sourced by a common CP-phase. As an illustration, we work in the Two-Higgs-Doublet model. Because the relevant CP-phase is flavor off-diagonal, this mechanism is less severely constrained by null results of electric dipole moment searches than other scenarios. We show how measurements of flavor observables by the D0, CDF, and LHCb collaborations test this scenario.

View original: http://arxiv.org/abs/1109.4145