Ultra High Energy Cosmic Rays, Photons and Neutrinos

Abstract

We briefly review the main channels of gamma ray and neutrino production due to the propagation of ultra high energy cosmic rays. We show how the observations of these secondary radiations are of paramount importance in tagging mass composition and sources of ultra high energy cosmic rays.

arXiv comment5 pages, 4 pdf figures, invited talk given at the 11th Workshop on Science with the New Generation of High Energy Gamma-ray Experiments (SciNeGHE 2016), 18-21 October 2016, Pisa (Italy). To be published in Nuovo Cimento C