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.Comment: 22 pages, 3 figure
