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LHC has reported tantalizing hints for a Higgs boson of mass 125 GeV decayinginto two photons. We focus on two-Higgs-doublet Models, and study theinteresting possibility that the heavier scalar (H) has been seen, with thelightest scalar (h) having thus far escaped detection. Non-observation of h atLEP severely constrains the parameter-space of two-Higgs-doublet models. Weanalyze cases where the decay H --> h h is kinematically allowed, and caseswhere it is not, in the context of type I, type II, lepton-specific, andflipped models.

Could the LHC two-photon signal correspond to the heavier scalar in two-Higgs-doublet models?