SU(2)_N Model of Vector Dark Matter with a Leptonic Connection

TL;DR

This paper explores a vector dark matter model based on an SU(2)_N extension of the standard model, highlighting its unique annihilation mechanisms and potential for neutrino mass generation.

Contribution

It introduces a novel vector dark matter framework with an SU(2)_N gauge symmetry, connecting dark matter properties to neutrino mass mechanisms.

Findings

Dark matter annihilation primarily involves new particles in thermal equilibrium.

The model can implement the inverse seesaw mechanism for neutrino masses.

Unique properties distinguish this vector dark matter from scalar or fermion models.

Abstract

Models of fermion and scalar dark matter abound. Here we consider instead vector dark matter, from an SU(2)_N extension of the standard model. It has a number of interesting properties, including a possible implementation of the inverse seesaw mechanism for neutrino mass. The annihilation of dark matter for calculating its relic abundance in this model is not dominated by its cross section to standard-model particles, but rather to other new particles which are in thermal equilibrium with those of the standard model.