Asymptotically safe dark matter with gauged baryon number

TL;DR

This paper explores a model where TeV-scale fermionic dark matter interacts via a gauged baryon number gauge boson, which acts as a portal, ensuring the model's consistency with ultraviolet fixed points and observational constraints.

Contribution

It introduces an asymptotically safe model of gauged baryon number that incorporates dark matter and analyzes its compatibility with relic density and detection bounds.

Findings

Achieves correct dark matter relic density.

Remains consistent with direct detection bounds.

Maintains asymptotic safety with gauge coupling constraints.

Abstract

We consider the inclusion of TeV-scale, fermionic dark matter in an asymptotically safe model of gauged baryon number that has been recently proposed [Phys. Rev. D 106, no. 3, 035015 (2022)]. The new gauge boson serves as a portal between the dark and the visible sectors. The range of the baryon number gauge coupling and the kinetic mixing between baryon number and hypercharge are constrained by the requirement that nontrivial ultraviolet fixed points are reached. We show that this asymptotically safe dark matter model can achieve the correct dark matter relic density while remaining consistent with direct detection bounds.