Inverse Seesaw Neutrino Mass from Lepton Triplets in the U(1)_Sigma Model

TL;DR

This paper explores how the inverse seesaw mechanism for neutrino mass can be realized within the U(1)_Sigma gauge extension of the Standard Model, utilizing lepton triplets as key components.

Contribution

It introduces a novel implementation of the inverse seesaw mechanism using lepton triplets in the U(1)_Sigma model, expanding the theoretical framework for neutrino mass generation.

Findings

Demonstrates the viability of inverse seesaw in the U(1)_Sigma model

Shows lepton triplets can serve as Type III seesaw anchors

Provides a new gauge extension approach for neutrino mass models

Abstract

The inverse seesaw mechanism of neutrino mass, i.e. m_nu = (m_D^2/m_N^2)epsilon_L where epsilon_L is small, is discussed in the context of the U(1)_Sigma model. This is a gauge extension of the Standard Model of particle interactions with lepton triplets (Sigma^+,Sigma^),Sigma^-) as (Type III) seesaw anchors for obtaining small Majorana neutrino masses.