Realistic $\mathrm{SU(3)_c \otimes SU(3)_L \otimes U(1)_X}$ model with a type II Dirac neutrino seesaw mechanism

TL;DR

This paper introduces a realistic extended gauge model that naturally incorporates a type II Dirac neutrino seesaw mechanism, potentially testable at current collider energies, and explains charged lepton and quark masses with new scalars.

Contribution

It proposes a novel SU(3)_c x SU(3)_L x U(1)_X model with an enlarged Higgs sector enabling a natural type II Dirac neutrino seesaw mechanism.

Findings

Neutrino masses generated via a type II seesaw mechanism.

Charged lepton and quark masses explained naturally.

Model energy scale accessible at LHC.

Abstract

Here we propose a realistic $\mathrm{SU(3)_c \otimes SU(3)_L \otimes U(1)_X}$ electroweak gauge model with enlarged Higgs sector. The scheme allows for the natural implementation of a type II seesaw mechanism for Dirac neutrinos, while charged lepton and quark masses are reproduced in a natural way thanks to the presence of new scalars. The new $\mathrm{SU(3)_c \otimes SU(3)_L \otimes U(1)_X}$ energy scale characterizing neutrino mass generation could be accessible to the current LHC experiments.