Highest-energy cosmic rays from Fermi-degenerate relic neutrinos consistent with Super-Kamiokande results

Details Highest-energy cosmic rays from Fermi-degenerate relic neutrinos consistent with Super-Kamiokande results Highest-energy cosmic rays from Fermi-degenerate relic neutrinos consistent with Super-Kamiokande results

1999-02-16

arxiv.org/abs/hep-ph/9902354v2

Phys.Rev.Lett. 82 (1999) 5202

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, revtex; final version (minor changes in wording and references)

Scientific paper

10.1103/PhysRevLett.82.5202

Relic neutrinos with mass 0.07 (+0.02/-0.04) eV, in the range consistent with Super-Kamiokande data, can explain the cosmic rays with energies in excess of the Greisen-Zatsepin-Kuzmin cutoff. The spectrum of ultra-high energy cosmic rays produced in this fashion has some distinctive features that may help identify their origin. Our mechanism does not require but is consistent with a neutrino density high enough to be a new kind of hot dark matter.

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