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Comptes Rendus Physique
Volume 15, n° 4
pages 349-356 (avril 2014)
Doi : 10.1016/j.crhy.2014.02.013
Cosmogenic neutrinos and gamma rays
Neutrinos et photons cosmogéniques
 

Todor Stanev
 Bartol Research Institute and Department of Physics and Astronomy, University of Delaware, Newark, DE 19716, USA 

Abstract

We describe the photoproduction interactions of ultrahigh energy protons on the universal photon backgrounds and the production of very high-energy neutrinos and γ-rays in such interactions. We compare the production in propagation in the microwave background to that in the extragalactic background light. The propagation of heavy nuclei is discussed only briefly. We show the extreme models for cosmogenic neutrino production and the limits set on them by different experiments.

The full text of this article is available in PDF format.
Résumé

Nous décrivons la production de neutrinos et rayons gamma de très haute énergie lors des interactions de photo-production des protons d'ultra haute énergie sur les fonds diffus de photons. Nous comparons la production sur le fond diffus cosmologique à celle sur le fond diffus de lumière extragalactique. La propagation des noyaux massifs est brièvement évoquée. Nous présentons les modèles extrêmes de production de neutrinos et les comparons aux limites obtenues par différentes expériences.

The full text of this article is available in PDF format.

Keywords : Ultrahigh energy cosmic rays, Universal photon backgrounds, Neutrino and gamma ray production, Limits on the neutrino fluxes

Mots-clés : Rayons cosmiques de ultra-haute énergie, Fond diffus de photons, Fond diffus cosmologique, Production de neutrinos et de rayons gamma, Limites sur les flux de neutrinos




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