Cosmic Rays and Particle PhysicsFully updated for the second edition, this book introduces the growing and dynamic field of particle astrophysics. It provides an overview of high energy nuclei, photons and neutrinos, including their origins, their propagation in the cosmos, their detection on Earth and their relation to each other. Coverage is expanded to include new content on high energy physics, the propagation of protons and nuclei in cosmic background radiation, neutrino