Hidden SU(N) Glueball Dark Matter

TL;DR

This paper explores the idea that dark matter could be composed of hidden glueballs from a pure non-abelian gauge theory, revealing rich phenomena like self-interactions, dark stars, and potential collider signatures.

Contribution

It introduces the concept of hidden glueball dark matter from a pure gauge theory, highlighting novel phenomena especially in the large N parameter space.

Findings

Potential for self-interacting and warm dark matter

Formation of massive dark stars causing gravitational lensing

Possible indirect detection and collider signatures

Abstract

We investigate the possibility that the dark matter candidate is from a pure non-abelian gauge theory of the hidden sector, motivated in large part by its elegance and simplicity. The dark matter is the lightest bound state made of the confined gauge fields, the hidden glueball. We point out this simple setup is capable of providing rich and novel phenomena in the dark sector, especially in the parameter space of large N. They include self-interacting and warm dark matter scenarios, Bose-Einstein condensation leading to massive dark stars possibly millions of times heavier than our sun giving rise to gravitational lensing effects, and indirect detections through higher dimensional operators as well as interesting collider signatures.