Prof.
Howard Haber
(Santa Cruz Institute for Particle Physics)
22/05/2018, 14:00
Mechanisms that yield mass degeneracies in extended Higgs sectors with multiple Higgs doublets are examined. Some puzzling features of a recent 3HDM constructed by Ivanov and Silav are considered that appear to be connected to the mass degeneracies of their model.
Dr
Venus Keus
(University of Helsinki)
22/05/2018, 14:20
I will talk about popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar. I will focus on the contributions of the added scalars to the anomalous magnetic moment of the muon, and the electric dipole moment of the electron in these models.
Dr
Benjamin Stefanek
(Johannes Gutenberg Universität Mainz)
22/05/2018, 14:40
We construct a model of quark-lepton unification at the TeV scale based on an SU(4) gauge symmetry, while still having acceptable neutrino masses and enough suppression in flavor changing neutral currents. An approximate U(2) flavor symmetry is an artifact of family-dependent gauge charges leading to a natural realization of the CKM mixing matrix. The model predicts sizeable violation of PMNS...
