1111.3290 (Denis Allard)
Denis Allard
In this paper we review the extragalactic propagation of ultrahigh energy
cosmic-rays (UHECR). We present the different energy loss processes of protons
and nuclei, and their expected influence on energy evolution of the UHECR
spectrum and composition. We discuss the possible implications of the recent
composition analyses provided by the Pierre Auger Observatory. The influence of
extragalactic magnetic fields and possible departures from the rectilinear case
are also mentioned as well as the production of secondary cosmogenic neutrinos
and photons and the constraints their observation would imply for the UHECRs
origin. Finally, we conclude by briefly discussing the relevance of a multi
messenger approach for solving the mystery of UHECRs.
View original:
http://arxiv.org/abs/1111.3290
No comments:
Post a Comment