Ultra-High Energy Cosmic Rays from Neutrino Emitting Acceleration Sources?

Details Ultra-High Energy Cosmic Rays from Neutrino Emitting Acceleration Sources? Ultra-High Energy Cosmic Rays from Neutrino Emitting Acceleration Sources?

2001-12-28

arxiv.org/abs/hep-ph/0112351v1

Phys.Rev. D65 (2002) 103003

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures, RevTeX style

Scientific paper

10.1103/PhysRevD.65.103003

We demonstrate by numerical flux calculations that neutrino beams producing the observed highest energy cosmic rays by weak interactions with the relic neutrino background require a non-uniform distribution of sources. Such sources have to accelerate protons at least up to 10^{23} eV, have to be opaque to their primary protons, and should emit the secondary photons unavoidably produced together with the neutrinos only in the sub-MeV region to avoid conflict with the diffuse gamma-ray background measured by the EGRET experiment. Even if such a source class exists, the resulting large uncertainties in the parameters involved in this scenario does currently not allow to extract any meaningful information on absolute neutrino masses.

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