Neutrino production in UHECR proton interactions in the infrared background

Abstract

We discuss the contribution of proton photoproduction interactions on the isotropic infrared/optical background to the cosmic neutrino fluxes. This contribution has a strong dependence on the proton injection energy spectrum, and is essential at high redshifts. It is thus closely correlated with the cosmological evolution of the ultra high energy proton sources and of the inrared background itself. These interactions may also contribute to the source fluxes of neutrinos if the proton sources are located in regious of high infrared emission and magnetic fields.

arXiv comment5 pages, 4 postscript figures

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• CRPropa: A Numerical Tool for the Propagation of UHE Cosmic Rays, Gamma-rays and Neutrinos
• UHE neutrino searches using a Lunar target: First Results from the RESUN search
• Cosmic PeV Neutrinos and the Sources of Ultrahigh Energy Protons
• Cosmogenic Neutrinos from Cosmic Ray Interactions with Extragalactic Infrared Photons
• Neutrinos from extragalactic cosmic ray interactions in the far infrared background
• Ultra High Energy Cosmic Ray, Neutrino, and Photon Propagation and the Multi-Messenger Approach
• Interactions of High Energy Cosmic Rays with Extragalactic Infrared Radiation Background