• High-energy cosmic rays: Puzzles, models, and giga-ton neutrino telescopes

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    • Keywords


      Cosmic rays; neutrinos; 𝛾-ray bursts.

    • Abstract


      The existence of cosmic rays of energies exceeding 1020 eV is one of the mysteries of high-energy astrophysics. The spectrum and the high energy to which it extends rule out almost all suggested source models. The challenges posed by observations to models for the origin of high-energy cosmic rays are reviewed, and the implications of recent new experimental results are discussed. Large area high-energy cosmic ray detectors and large volume high-energy neutrino detectors currently under construction may resolve the high-energy cosmic ray puzzle, and shed light on the identity and physics of the most powerful accelerators in the Universe.

    • Author Affiliations


      E Waxman1

      1. Department of Physics, Weizmann Institute, Rehovot, Israel
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