Electroweak Baryogenesis and Alignment from Two Higgs Doublets
Event details
Date | 20.10.2017 |
Hour | 14:00 › 15:00 |
Speaker | George Wei-Shu Hou (National Taiwan University) |
Location | |
Category | Conferences - Seminars |
With two Higgs doublets but without any discrete Z_2 symmetry to forbid
flavor changing neutral Higgs couplings, new top Yukawa couplings rho_tt and
rho_tc are allowed and naturally complex. Electroweak baryogenesis is
remarkably efficient if both rho_tt (and rho_tc) and exotic Higgs quartic
couplings are O(1). Furthermore, the alignment phenomenon, that the observed
125 GeV boson so closely resembles the Standard Model Higgs boson, emerges
naturally. One not only has many new flavor and CPV phenomena (modulo SM-like
flavor organization plus alignment), but the exotic Higgs bosons H^0, A^0
and H^+ are necessarily sub-TeV in mass, and LHC search should be readjusted.
Practical information
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