Leptophobic Dark Matter and the Baryon Number Violation Scale

TL;DR

This paper explores a gauge theory linking baryon number violation to dark matter relic density, proposing a leptophobic dark matter candidate with a symmetry breaking scale up to 200 TeV, and discusses experimental tests and cosmological implications.

Contribution

It introduces a simple gauge theory predicting a leptophobic dark matter particle and constrains the symmetry breaking scale using cosmological relic density bounds.

Findings

Upper bound on symmetry breaking scale ~200 TeV

Properties of leptophobic dark matter detailed

Potential for testing at current and future experiments

Abstract

We discuss the possible connection between the scale for baryon number violation and the cosmological bound on the dark matter relic density. A simple gauge theory for baryon number which predicts the existence of a leptophobic cold dark matter particle candidate is investigated. In this context, the dark matter candidate is a Dirac fermion with mass defined by the new symmetry breaking scale. Using the cosmological bounds on the dark matter relic density we find the upper bound on the symmetry breaking scale around 200 TeV. The properties of the leptophobic dark matter candidate are investigated in great detail and we show the prospects to test this theory at current and future experiments. We discuss the main implications for the mechanisms to explain the matter and antimatter asymmetry in the Universe.