The scalar sector of 3-3-1 models

Abstract

We study the mass spectrum and the eigenstates of the scalar sectors in 3-3-1 models. We show that, in one of the models, the physical scalar masses lead to theoretical constraints to the vacuum expectation values. The models allow very light Higgs bosons. One of the neutral scalars can be identified with the standard model one.

Searching for doubly charged Higgs bosons at the LHC in a 3-3-1 model

“…[12], we have considered two possibilities: f 0 and f = −99.63 GeV (see Table 1). For both possibilities we have assumed the values v η = 195 GeV, v χ = 1300 GeV, λ 1 = −1.2, −λ 2 = −λ 3 = λ 6 = −λ 8 = 1, λ 4 = +2.98, λ 5 = −1.56, λ 7 = −3, but for λ 9 we have used λ 9 = −1 when f ≈ 0 and λ 9 = −1.9 when f = −99.63 GeV.…”

“…This mechanism generate the fermion and gauge boson masses [12]. The pattern of symmetry breaking (1) em .…”

“…. , 9) are adimensional constants with λ 3 < 0 and f < 0 from the positivity of the scalar masses [12]. The η and ρ scalar triplets give masses to the ordinary fermions and gauge bosons, while the χ scalar triplet gives masses to the new fermion and gauge bosons.…”

Doubly charged Higgs through photon-photon collisions in 3-3-1 models

“…In this version the three scalar triplets are Uð1Þ em . In the potential [12] f is a constant with dimension of mass and the i (i ¼ 1; . .…”

Two-bodyZ′decays in the minimal 3-3-1 model

“…The minimal Higgs sector of the 331 model has been already studied in the literature [30]. The three triplets and the sextet lead to 22 physical states: 5 neutral CP-even, 3 neutral CP-odd, 4 singly charged, and 3 doubly charged.…”