Cosmogenic neutrinos from cosmic ray interactions with extragalactic infrared photons
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 energ...
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Veröffentlicht in: | Physical review. D, Particles and fields Particles and fields, 2006-02, Vol.73 (4), Article 043003 |
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container_title | Physical review. D, Particles and fields |
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creator | Stanev, Todor De Marco, Daniel Malkan, M. A. Stecker, F. W. |
description | 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{sup -2.5} cosmic ray injection spectrum, for example, the event rate of neutrinos of energy above 1 PeV is more than doubled. |
doi_str_mv | 10.1103/PhysRevD.73.043003 |
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subjects | COSMIC NEUTRINOS COSMIC PHOTONS COSMOLOGY ENERGY SPECTRA PARTICLE INTERACTIONS PEV RANGE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PROTONS |
title | Cosmogenic neutrinos from cosmic ray interactions with extragalactic infrared photons |
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