Axial Currents from CKM Matrix CP Violation and Electroweak Baryogenesis

Details Axial Currents from CKM Matrix CP Violation and Electroweak Baryogenesis Axial Currents from CKM Matrix CP Violation and Electroweak Baryogenesis

2003-09-25

arxiv.org/abs/hep-ph/0309291v1

Nucl.Phys. B679 (2004) 246-260

Physics

High Energy Physics

High Energy Physics - Phenomenology

RevTeX, 8 pages, 6 figures

Scientific paper

10.1016/j.nuclphysb.2003.11.037

The first principle derivation of kinetic transport equations suggests that a CP-violating mass term during the electroweak phase transition can induce axial vector currents. Since the important terms are of first order in gradients there is a possibility to construct new rephasing invariants that are proportional to the CP phase in the Cabibbo-Kobayashi-Maskawa matrix and to circumvent the upper bound of CP-violating contributions in the Standard Model, the Jarlskog invariant. Qualitative arguments are given that these new contributions still fail to explain electroweak baryogenesis in extensions of the Standard Model with a strong first order phase transition.

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