Embedding cosmological inflation, axion dark matter and seesaw mechanism in a 3-3-1 gauge model

TL;DR

This paper presents a 3-3-1 gauge model that simultaneously addresses cosmological inflation, axion dark matter, and neutrino masses by extending the scalar sector and incorporating heavy neutrinos.

Contribution

It introduces a unified framework within a 3-3-1 gauge model that naturally incorporates inflation, axion dark matter, and the seesaw mechanism for neutrino masses.

Findings

The model successfully explains inflation via a neutral scalar singlet.

It provides a viable axion dark matter candidate.

Neutrino masses are generated through the seesaw mechanism.

Abstract

The Peccei-Quinn symmetry is an automatic symmetry of the 3-3-1 gauge models which, consequently are not plagued with the strong CP problem. Nevertheless, the axion that emerges from spontaneous breaking of Peccei-Quinn symmetry cannot be made invisible in the original versions of these models, unless we extend their scalar sector by an additional neutral scalar singlet. In this case we show that if, we also add heavy neutrinos in the singlet form, we get to solve three interesting open questions at once: the real component of the neutral scalar singlet driving inflation, the axion playing the role of the dark matter of the universe and standard neutrinos gaining masses through seesaw mechanism.