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30th International Cosmic Ray Conference - ICRC'07, Merida : Mexique (2007)
Cosmogenic Neutrinos from the propagation of Ultra High Energy Cosmic Rays
N.G. Busca1, D. Allard1, A. Olinto1, M. Ave, E. Parizot1

We calculate the flux of neutrinos generated along the propagation of ultra-high energy nuclei over cosmological distances. The propagation takes into account the interactions with the cosmic background radiations including the CMB and the most recent estimates of higher energy (infra-red, optical, and ultra-violet) backgrounds. We assume that the composition of ultra-high energy cosmic rays (UHECRs) at the source is the same as the observed one at low energies. We find that the neutrino flux in the mixed case has a high energy peak, mainly due to photopion production off CMB photons, of similar shape and amplitude to the proton case. At low energies both composition cases have a significant neutrino flux that extends down to 1012 eV. Detection of diffuse neutrino fluxes at ultra high energies is within reach of present experiments.
1 :  APC - UMR 7164 - AstroParticule et Cosmologie
Physique/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique/Cosmologie et astrophysique extra-galactique

Planète et Univers/Astrophysique