ASYMMETRY WEBINAR: Wednesday, October 22nd at 4:00 PM (CEST)
Speaker: Bea Noether (UC Berkeley)
Title: Solving the Strong-CP Problem with a TeV-scale Extra Higgs Doublet.
Abstract: Previously we introduced a new mechanism for solving the strong CP problem and relating it to the flavor puzzle. This is a softly-broken CP solution that only requires one copy of the Higgs doublet and an abelian flavor symmetry under which both the Higgs and the quarks are charged. Remarkably, all one-loop corrections to the strong CP angle are identically zero for models of this type. An additional surprise is that the CP-odd and -even scalars do not mix at all, and thus these models are protected from powerful constraints on FCNCs. The heavy scalars can then be orders of magnitude lighter than would be expected from the Glashow-Weinberg criterion, making this class of strong-CP solutions not only novel but potentially detectable at near-future experiments.
