Electroweak Baryogenesis, Electric Dipole Moments, and Higgs Diphoton Decays
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 collider would be consistent with generation of the observed baryon asymmetry in this scenario.
Keywords
Cite
@article{arxiv.1406.0517,
title = {Electroweak Baryogenesis, Electric Dipole Moments, and Higgs Diphoton Decays},
author = {Wei Chao and Michael J. Ramsey-Musolf},
journal= {arXiv preprint arXiv:1406.0517},
year = {2015}
}
Comments
22 pages, 3 figures