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arXiv · 1406.0517

Electroweak Baryogenesis, Electric Dipole Moments, and Higgs Diphoton Decays

Wei Chao·Michael J. Ramsey-Musolf
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Abstract

We study the viability of electroweak baryogenesis in a two Higgs doublet model scenario augmented by vector-like, electroweakly interacting fermions. Considering a limited, but illustrative region of the model parameter space, we obtain the observed cosmic baryon asymmetry while satisfying present constraints from the non-observation of the permanent electric dipole moment (EDM) of the electron and the combined ATLAS and CMS result for the Higgs boson diphoton decay rate. The observation of a non-zero electron EDM in a next generation experiment and/or the observation of an excess (over the Standard Model) of Higgs to diphoton events with the 14 TeV LHC run or a future $e^+e^-$ collider would be consistent with generation of the observed baryon asymmetry in this scenario.

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Wei Chao, Michael J. Ramsey-Musolf. 2014-06-02. Electroweak Baryogenesis, Electric Dipole Moments, and Higgs Diphoton Decays. https://doi.org/10.1007/jhep10(2014)180

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