Asymmetric Dark Matter: Theories, Signatures, and Constraints

TL;DR

This paper reviews asymmetric dark matter theories, their cosmological implications, detection methods, and constraints, emphasizing mechanisms for matter-antimatter asymmetry transfer and observational signatures.

Contribution

It provides a comprehensive overview of ADM models, highlighting common features, mechanisms, and constraints, including recent developments in detection and cosmological bounds.

Findings

Identification of key mechanisms for matter-antimatter asymmetry transfer

Survey of detection methods and observational constraints

Analysis of cosmological bounds from various astrophysical objects

Abstract

We review theories of Asymmetric Dark Matter (ADM), their cosmological implications and detection. While there are many models of ADM in the literature, our review of existing models will center on highlighting the few common features and important mechanisms for generation and transfer of the matter-anti-matter asymmetry between dark and visible sectors. We also survey ADM hidden sectors, the calculation of the relic abundance for ADM, and how the DM asymmetry may be erased at late times through oscillations. We consider cosmological constraints on ADM from the cosmic microwave background, neutron stars, the Sun, and brown and white dwarves. Lastly, we review indirect and direct detection methods for ADM, collider signatures, and constraints.