The detemination of the primary cosmic ray mass composition from the longitudinal development of atmospheric cascades is still an open problem. In this work we propose a new method of the multiparametric topological analysis and show that if both Xmax - the depth of shower maximum and Nmax - the number of charged particles in the shower maximum are used, reliable results can be obtained.
@article{arxiv.astro-ph/0410179,
title = {A new method for the UHECR mass composition studies},
author = {M. Ambrosio and C. Aramo and D. D'Urso and A. D. Erlykin and F. Guarino and A. Insolia},
journal= {arXiv preprint arXiv:astro-ph/0410179},
year = {2009}
}
Comments
6 pages, 4 figures, talk given at CRIS2004 Cosmic Ray International Seminar 'GZK and Surroundings', 31.05-4.06.04, Catania, Italy, to be published in Nucl.Phys.B (Proc.Suppl.)