Dark Matter from $SU(6) \to SU(5) \times U(1)_N$

TL;DR

This paper explores a grand unification model where matter and dark matter are unified under an $SU(6)$ symmetry, proposing a dark matter candidate with a long lifetime due to the unification structure.

Contribution

It introduces a novel $SU(6)$ to $SU(5) imes U(1)_N$ framework that naturally includes a long-lived dark matter candidate.

Findings

Dark matter candidate with a very long lifetime

Unified matter and dark matter under $SU(6)$ symmetry

Specific example demonstrating the model's viability

Abstract

Matter and dark matter are unified under the framework of $SU(6)\to SU(5) \times U(1)_N$. A dark-matter candidate is possible, not because it is stable, but because it has a very long lifetime, in analogy to that of the proton in theories of grand unification. A specific example is presented.