The relic density of shadow dark matter candidates

TL;DR

This paper calculates the relic density of dark matter candidates from a model involving an SU(2)_Z gauge group, showing they can account for a significant portion of the universe's dark matter.

Contribution

It introduces a novel dark matter model based on an asymptotically free gauge group and computes relic densities for its fermionic candidates.

Findings

Candidates with 50-285 GeV masses can explain all or part of dark matter.

The model's parameters allow for a wide range of relic densities.

Dark matter candidates are weakly interacting massive particles.

Abstract

We present the results of relic density calculations for cold dark matter candidates coming from a model of dark energy and dark matter, which is described by an asymptotically free gauge group SU(2)_Z (QZD) with a coupling constant alpha_Z ~ 1 at very low scale of Lambda_Z ~ 10^(-3) eV while alpha_Z ~ weak coupling at high energies. The dark matter candidates of QZD are two fermions in the form of weakly interacting massive particles. Our results show that for masses between 50 and 285 GeV, they can account for either a considerable fraction or the entire dark matter of the Universe.