Neutrino mass generation with large $SU(2)_L$ multiplets under local $U(1)_{L_\mu - L_\tau}$ symmetry

TL;DR

This paper introduces a neutrino mass model utilizing large $SU(2)$ multiplets and a gauged $U(1)_{L___ au}$ symmetry, analyzing neutrino mass structures and collider phenomenology of exotic leptons.

Contribution

It presents a novel neutrino mass generation mechanism with large $SU(2)$ multiplets and explores collider signatures of exotic leptons from these multiplets.

Findings

Neutrino mass matrix constructed with large $SU(2)$ multiplets.

Predictions for collider signatures of doubly- and singly-charged exotic leptons.

Analysis of phenomenological implications of the $U(1)_{L___ au}$ symmetry.

Abstract

We propose a model of neutrino mass matrix with large $SU(2)$ multiplets and gauged $U(1)_{L_\mu - L_\tau}$ symmetry, in which we introduce $SU(2)$ quartet scalar and quintet fermions with nonzero $L_\mu - L_\tau$ charge. Then we investigate the neutrino mass structure and explore phenomenologies of large multiplet fields at the collider, particularly, focussing on doubly- and singly- charged exotic leptons from the quintet.