A Linear seesaw model with hidden gauge symmetry

TL;DR

This paper introduces a linear seesaw model with hidden gauge symmetry, incorporating new scalar and fermion fields, which explains small neutrino masses and predicts detectable collider signals.

Contribution

It presents a novel linear seesaw framework with hidden gauge symmetry, including specific scalar and fermion content, and analyzes its collider phenomenology.

Findings

Small neutrino masses achieved via scalar VEV and Dirac mass suppression

Predicted signals from exotic charged particles at the LHC

Model provides a natural explanation for neutrino mass scale

Abstract

We propose a natural realization of linear seesaw model with hidden gauge symmetry in which $SU(2)_L$ triplet fermions, one extra Higgs singlet, doublet and quartet scalar are introduced. Small neutrino mass can be realized by two suppression factors that are small vacuum expectation value of quartet scalar and inverse of Dirac mass for triplet. After formulating neutrino mass matrix, we discuss collider phenomenology of the model focusing on signals from exotic charged particles production at the LHC.