On trilinear terms in the scalar potential of 3-3-1 gauge models
Abstract
The trilinear terms of the form 2 fεijk i jφk in the scalar potential of a 3-3-1 gauge model are considered. When looking for the eigenbasis of the massive physical Higgs bosons that survive the spontaneous symmetry breakdown of the model -- in light of the observed SM-like Higgs boson with mass mh125 GeV reported in 2012 at the LHC -- one gets a strong constraint to the cubic term. It has to be smaller than usual f w, in flagrant contradiction with the large one f w which is propagated in the literature to date.
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