Vector-Boson-Induced Neutrino Mass

TL;DR

This paper demonstrates a novel mechanism for generating Majorana neutrino masses at one-loop level via vector gauge boson exchange within an extended standard model framework, linking neutrino mass generation to dark matter candidates.

Contribution

It introduces a new one-loop neutrino mass generation mechanism involving vector gauge bosons in an $SU(2)_N$ extension of the standard model, expanding beyond scalar-based models.

Findings

Neutrino masses can be generated through vector boson exchange.

The model links neutrino mass origin to dark matter candidates.

First demonstration of vector-boson-induced neutrino mass at one-loop.

Abstract

One-loop radiative Majorana neutrino masses through the exchange of scalars have been considered for many years. We show for the first time how such a one-loop mass is also possible through the exchange of vector gauge bosons. It is based on a simple variation of a recently proposed $SU(2)_N$ extension of the standard model, where a vector boson is a candidate for the dark matter of the Universe.