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

Authors
Gelmini, G Kusenko, A
Citation
G. Gelmini et A. Kusenko, Highest-energy cosmic rays from fermi-degenerate relic neutrinos consistent with Super-Kamiokande results, PHYS REV L, 82(26), 1999, pp. 5202-5204
Citations number
55
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
00319007 → ACNP
Volume
82
Issue
26
Year of publication
1999
Pages
5202 - 5204
Database
ISI
SICI code
0031-9007(19990628)82:26<5202:HCRFFR>2.0.ZU;2-#
Abstract
Relic neutrinos with mass 0.07(-0.04)(+0.02) eV, in the range consitent wit h Super-Kamiokande data, can explain the cosmic rays with energies in exces s of the Greisen-Zatsepin-Kuzmin cutoff. The spectrum of ultrahigh energy c osmic rays produced in this fashion has some distinctive features that may help identify their origin. Our mechanism does not require but is consisten t with a neutrino density high enough to be a new kind of hot dark matter.