Electroweak Baryogenesis and Alignment from Two Higgs Doublets

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Event details

Date 20.10.2017
Hour 14:0015:00
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

  • General public
  • Free

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het seminar

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