Ferreira, P. M.Santos, RuiSher, MarcSilva, João P.2015-09-102015-09-102012-02-21FERREIRA, P. M.; [et al] – Could the LHC two-proton signal correspond to the heavier scalar in two-higgs-doublet models? Physical Review D. ISSN: 1550-7998. Vol. 85, nr. 3 (2012)1550-7998http://hdl.handle.net/10400.21/5146LHC 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. Nonobservation of h at LEP severely constrains the parameter-space of two-Higgs-doublet models. We analyze cases where the decay H -> hh is kinematically allowed, and cases where it is not, in the context of type I, type II, lepton-specific, and flipped models.engHiggs BosonsSearchLEPjournal article10.1103/PhysRevD.85.035020