High Energy Cosmic Rays from Neutrinos

Abstract

We discuss recent models in which neutrinos, which are assumed to have mass in the eV range, originate the highest energy cosmic rays by interaction with the enhanced density in the galactic halo of the relic cosmic neutrino background. We make an analytical calculation of the required neutrino fluxes to show that the parameter space for these models is constrained by horizontal air shower searches and by the total number of background neutrinos, so that only models which have fairly unnatural halo sizes and enhanced densities are allowed.

14 pages, 3 ps figures. To appear in Phys. Rev. D

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• Absolute Neutrino Mass Determination
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• Testing the Correlation of Ultra-High Energy Cosmic Rays with High Redshift Sources
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• High Energy Neutrino, Photon and Cosmic Ray Fluxes from VHS Cosmic Strings
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• Neutrino Clustering in the Galaxy with a Global Monopole
• Ultra high energy cosmic rays: clustering, GUT scale and neutrino masses
• Particle decays in the presence of a neutrino background