Predestined Dark Matter in Gauge Extensions of the Standard Model

TL;DR

This paper explores how gauge extensions of the Standard Model naturally include or can accommodate dark matter candidates through minimal fermion and scalar multiplets, without requiring additional symmetries.

Contribution

It introduces the concept of predestined dark matter within gauge extensions, identifying minimal multiplets that inherently contain or can host dark matter particles.

Findings

Identification of minimal multiplets containing dark matter candidates

Examples of new predestined dark matter models

Dark matter candidates can arise without extra symmetries

Abstract

In any gauge extension of the standard model (SM) of quarks and leptons, there is a minimal set of fermion and scalar multiplets which encompasses all the particles and interactions of the SM. Included within this set, there may be a suitable dark-matter candidate. If not, one may still exist from the judicious addition of a simple fermion or scalar multiplet without any imposed symmetry. Some new examples of such predestined dark matter are discussed.