Cosmogenic neutrinos from cosmic ray interactions with extragalactic infrared photons

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.
Format: Artikel
Sprache:eng
Schlagworte:
COSMIC NEUTRINOS
COSMIC PHOTONS
COSMOLOGY
ENERGY SPECTRA
PARTICLE INTERACTIONS
PEV RANGE
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
PROTONS
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Zusammenfassung: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.
ISSN:1550-7998
0556-2821
1550-2368
1089-4918
DOI:10.1103/PhysRevD.73.043003