The Mysteries of the Highest Energy Cosmic Rays
arXiv:hep-ph/0501281 · doi:10.1016/j.nuclphysbps.2005.07.007
Abstract
We give a summary of the theoretical attempts to make sense of the observational data concerning the highest energy cosmic rays, (E > 3x10^{19} eV).
LaTeX 2e, 9 pages, no figures. Invited talk given at XIII ISVHECRI, Pylos, Greece