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

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

2011-09-19

arxiv.org/abs/1109.4145v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, 1 table

Scientific paper

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.

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