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Cosmogenic Neutrinos from Cosmic Ray Interactions with Extragalactic Infrared Photons

Daniel De Marco·Todor Stanev·F. W. Stecker
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Abstract

We discuss the production of cosmogenic neutrinos on extragalactic infrared photons in a model of its cosmological evolution. The relative importance of these infrared photons as a target for proton interactions is significant, especially in the case of steep injection spectra of the ultrahigh energy cosmic rays. For an E$^{-2.5}$ cosmic ray injection spectrum, for example, the event rate of neutrinos of energy above 1 PeV is more than doubled.

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Daniel De Marco, Todor Stanev, F. W. Stecker. 2005-12-19. Cosmogenic Neutrinos from Cosmic Ray Interactions with Extragalactic Infrared Photons. https://doi.org/10.1103/physrevd.73.043003

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