Multi-component Dark Matter from an $SU(2)_{D}\to Z_{3}^{D}\times Z_{2}^{\text{acc}}$ scenario

TL;DR

This paper explores a multi-component dark matter model arising from an $SU(2)_D$ symmetry breaking, revealing three stable dark matter candidates with relic abundances analyzed numerically.

Contribution

It introduces a novel multi-component dark matter scenario from an $SU(2)_D$ to $Z_3^D imes Z_2^{acc}$ symmetry breaking with three stable states.

Findings

Three stable dark matter candidates identified.

Mass and coupling regions compatible with observed relic abundance.

Stability of the third candidate due to phase space constraints.

Abstract

A multi-component weakly-interacting dark matter scenario is analyzed, where the candidate dark matter states arise from the $SU(2)_{D}\to Z_{3}^{D}\times Z_{2}^{\text{acc}}$ symmetry breaking triggered by a VEV-developing scalar in the $J=3/2$ representation. While the discrete symmetries guarantee at least two stable states, a closer look at the mass orderings of the contrived dark sector reveals the existence of a third dark matter candidate, whose stability effectively results from the tight phase space in the dark boson sector. Regions of masses and couplings where the three dark states furnish a comparable contribution to the observed relic abundance are determined numerically.