Heavy neutral bosons and dark matter in the 3-3-1 model with axionlike particle

TL;DR

This paper explores heavy neutral bosons and dark matter candidates in the 3-3-1 model with axionlike particles, analyzing collider signals, mass predictions, and relic density constraints.

Contribution

It provides new predictions for the masses of the $Z'$ boson and Higgs-like particles, and links dark matter relic density to the axion breaking scale.

Findings

Predicted $m_{Z'} \\geq 5.1$ TeV based on LHC dilepton searches.

Established a relationship between dark matter mass and axion symmetry breaking scale.

Predicted a Higgs boson mass $m_{h_2} \\geq 600$ GeV.

Abstract

We consider heavy neutral bosons in the 3-3-1 model with axionlike particles (331ALP), including the Higgs boson and the $Z^\prime$ boson which are outside the standard model (SM). Based on gluon-gluon fusion at the LHC, we investigate the signals of cross-sections in the parameter space region satisfying the current experimental limits of lepton flavor violating decay, including processes involving both charged leptons and Higgs boson, and provide predictions of $m_{h_2}\geq 600 ~\mathrm{GeV}$. A new gauge boson, labeled as $Z^{\prime}$, is predicted $m_{Z^{\prime}}\geq 5.1 ~\mathrm{TeV}$ based on the search for high-mass dilepton resonances at ATLAS and CMS. We consider the stability of odd-$Z_2$ particles, with $Z_2$ is assumed a residual symmetry after spontaneous symmetry breaking stages, to point out dark matter candidates in the model. Investigating the relic density of dark matter within experimentally permissible limits, we established a relationship between the mass of dark matter and the breaking scale of axion.