Production of Charged Higgs Bosons in a 3-3-1 Model at the CERN LHC

TL;DR

This paper investigates the production of charged Higgs bosons within a specific 3-3-1 model with right-handed neutrinos, highlighting how a new gauge boson influences production rates and can be tested at the LHC.

Contribution

It introduces a custodial symmetry in a 3-3-1 model, computes new production cross sections, and shows enhanced Higgs production rates due to the $Z'$ gauge boson at the LHC.

Findings

Enhanced production rates of $H_1^{ ext{±}}$ at the LHC compared to MSSM.

A significant portion of parameter space is testable at 14 TeV LHC.

The $Z'$ gauge boson affects charged Higgs production cross sections.

Abstract

We perform a study of the charged Higgs production from an $SU(3)_{C}\otimes SU(3)_{L}\otimes U(1)_{X}$ model with right-handed neutrinos, postulating a custodial symmetry which reduces the number of free parameters in the scalar potential. We compute the cross sections for charged scalars for typical and new production modes. One of the new $SU(3)_{L}$ neutral gauge bosons, $Z^{\prime}$, affects some production cross sections distinguishing the model from other Standard Model extensions like, for example, the Minimal Supersymmetric Standard Model and general two Higgs doublets models. The interplay between the Higgs sector of the model and that $Z^{\prime}$ gauge boson enhances substantialy all the production rates of the lightest charged Higgs boson, $H_{1}^{\pm}$, at hadron colliders compared to the MSSM. We found that a large portion of the parameters space can be probed at the LHC running at 14 TeV center-of-mass energy in the associated $pp\rightarrow W^{\pm}H_{1}^{\mp}+X$ production channel in the low luminosity run stage of the experiment.