Cosmogenic Neutrinos from Ultra-High Energy Nuclei
Abstract
We calculate the flux of neutrinos generated by the propagation of ultra-high energy iron over cosmological distances and show that even if ultra-high energy cosmic rays are composed of heavy nuclei, a significant flux of high-energy neutrinos should be present throughout the universe. The resulting neutrino flux has a new peak at 1014 eV generated by neutron decay and reproduces the double peak structure due to photopion production at higher energies ( 1018 eV). Depending on the maximum energy and cosmological evolution of extremely high energy cosmic accelerators the generated neutrino flux can be detected by future experiments.
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