1 research outputs found
Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?
LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decaying
into two photons. We focus on two-Higgs-doublet Models, and study the
interesting possibility that the heavier scalar (H) has been seen, with the
lightest scalar (h) having thus far escaped detection. Non-observation of h at
LEP severely constrains the parameter-space of two-Higgs-doublet models. We
analyze cases where the decay H --> h h is kinematically allowed, and cases
where it is not, in the context of type I, type II, lepton-specific, and
flipped models.Comment: 9 pages, pdf figure