Non-Baryonic Dark Matter in Cosmology

TL;DR

This review summarizes the current understanding of non-baryonic dark matter, covering its evidence, distribution, candidates, detection methods, and challenges within the $ ext{Lambda}$CDM model.

Contribution

It provides a comprehensive overview of dark matter research, highlighting recent developments and unresolved issues in the field.

Findings

Dark matter evidence spans multiple scales from small to large.

Candidates include WIMPs, axions, and sterile neutrinos.

Small scale problems challenge the $ ext{Lambda}$CDM model.

Abstract

This paper is a broad-band review of the current status of non-baryonic dark matter research. I start with a historical overview of the evidences of dark matter existence, then I discuss how dark matter is distributed from small scale to large scale, and I then verge the attention to dark matter nature: dark matter candidates and their detection. I finally discuss some of the limits of the $\Lambda$CDM model, with particular emphasis on the small scale problems of the paradigm.