Ultra High Energy Cosmic Rays an overview

We review the main experimental evidences on ultra high energy cosmic rays and their implications in the physics of these extremely energetic particles, also in connection with dark matter and cosmology. We discuss the basis of theoretical models aiming at explaining observations, highlighting the most relevant open questions in this fascinating field of research.

Automated summary

In this paper, we review the main experimental evidences of ultra high energy cosmic rays and their implications in the fields of particle physics, dark matter, and cosmology. We also discuss the theoretical models in explaining these observations and highlight the most significant unanswered questions in this fascinating area of research.