Speaker
Description
The asymmetric dark matter (ADM) paradigm is motivated by the apparent coincidence (5:1 ratio) between the cosmological mass densities of visible and dark matter. However, most ADM models only relate the number densities of visible and dark matter, and do not motivate the similarity in their particle masses. One exception is a framework introduced by Bai and Schwaller, where the dark matter is a confined state of a dark QCD-like gauge group, and the confinement scales of visible and dark QCD are related by a dynamical mechanism utilising infrared fixed points of the two gauge couplings. We built upon this framework by properly implementing the dependence of the results on the initial conditions for the gauge couplings in the UV. In this talk I will discuss the ability of this framework to naturally explain the cosmological mass density coincidence. I identify a set of viable models, and note the features that allow them to naturally relate the masses of the dark baryon and the proton while also avoiding collider constraints on the new particle content introduced.
