Ultra High Energy Cosmic Rays -- an Overview

Abstract

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.

Comments: 8 pages, 11 figures, invited review talk given at the 12th Cosmic Rays International Seminar, CRIS 2022, 12-16 September 2022, Naples, Italy