Remarks on the chemical composition of highest-energy cosmic rays
High Energy Astrophysical Phenomena
2011-11-28 v1 High Energy Physics - Phenomenology
Abstract
We present arguments aiming to reconcile the apparently contradictory results concerning the chemical composition of cosmic rays of highest energy, coming recently from Auger and HiRes collaborations. In particular, we argue that the energy dependence of the mean value and root mean square fluctuation of shower maxima distributions observed by the Auger experiment are not necessarily caused by the change of nuclear composition of primary cosmic rays.
Keywords
Cite
@article{arxiv.1108.4276,
title = {Remarks on the chemical composition of highest-energy cosmic rays},
author = {Grzegorz Wilk and Zbigniew Wlodarczyk},
journal= {arXiv preprint arXiv:1108.4276},
year = {2011}
}
Comments
Presented at 32nd International Cosmic Ray Conference, Beijing 2011, to be published in conference materials