On Relating the Genesis of Cosmic Baryons and Dark Matter

TL;DR

This paper explores unified scenarios for the origin of cosmic baryons and dark matter, reviewing models that could explain their similar energy densities in the universe.

Contribution

It provides an overview of theoretical models that propose a common origin for baryons and dark matter, highlighting recent developments and main predictions.

Findings

Unified models can explain similar energy densities of baryons and dark matter.

Recent developments support shared genesis scenarios.

Models predict specific signatures for observational testing.

Abstract

The similar cosmological energy budgets in visible baryons and dark matter motivate one to consider a common origin for the generation of both. We outline the key features of scenarios that can accommodate a unified framework for the genesis of cosmic matter. In doing so, we provide a brief overview of some of the past and recent developments and discuss the main predictions of a number of models.