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
Hauptverfasser: Stanev, Todor, De Marco, Daniel, Malkan, M. A., Stecker, F. W.
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container_title Physical review. D, Particles and fields
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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.
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ispartof Physical review. D, Particles and fields, 2006-02, Vol.73 (4), Article 043003
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language eng
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source American Physical Society Journals
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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