Gauge Theory Model of the Neutrino and New Physics Beyond the Standard Model

TL;DR

This paper proposes a gauge theory model for neutrinos based on SO(3) symmetry, explaining their small masses and mixing patterns, and predicts new particles that could be detected at colliders.

Contribution

It introduces a novel SO(3) gauge symmetry framework for neutrino physics, linking symmetry breaking to observable neutrino mixing and new particle predictions.

Findings

Explains small neutrino masses and mixing angles naturally.

Predicts non-zero $ heta_{13}$ and CP phases testable experimentally.

Forecasts new vector-like leptons and Higgs bosons accessible at colliders.

Abstract

Majorana features of neutrinos and SO(3) gauge symmetry of three families enable us to construct a gauge model of neutrino for understanding naturally the observed smallness of neutrino masses and the nearly tri-bimaximal neutrino mixing when combining together with the mechanism of approximate global U(1) family symmetry. The vacuum structure of SO(3) symmetry breaking is found to play an important role. The mixing angle $\theta_{13}$ and CP-violating phases governed by the vacuum of spontaneous symmetry breaking are in general non-zero and testable experimentally at the allowed sensitivity. The model predicts the existence of vector-like SO(3) triplet charged leptons and vector-like SO(3) triplet Majorana neutrinos as well as SO(3) tri-triplet Higgs bosons, some of them can be light and explored at the colliders LHC and ILC.