Ultra-High Energy Neutrino Fluxes and Their Constraints

Details Ultra-High Energy Neutrino Fluxes and Their Constraints Ultra-High Energy Neutrino Fluxes and Their Constraints

2002-05-06

arxiv.org/abs/hep-ph/0205050v3

Phys.Rev. D66 (2002) 063004

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, 15 figures, version published in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.66.063004

Applying our recently developed propagation code we review extragalactic neutrino fluxes above 10^{14} eV in various scenarios and how they are constrained by current data. We specifically identify scenarios in which the cosmogenic neutrino flux, produced by pion production of ultra high energy cosmic rays outside their sources, is considerably higher than the "Waxman-Bahcall bound". This is easy to achieve for sources with hard injection spectra and luminosities that were higher in the past. Such fluxes would significantly increase the chances to detect ultra-high energy neutrinos with experiments currently under construction or in the proposal stage.

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