TY  - JOUR
AU  - Pierre Auger Collaboration (Abreu, P. et al
AU  - Pastor, S.
PY  - 2013
DA  - 2013//
TI  - Interpretation of the depths of maximum of extensive air showers measured by the Pierre Auger Observatory
T2  - J. Cosmol. Astropart. Phys.
JO  - Journal of Cosmology and Astroparticle Physics
SP  - 026
EP  - 20pp
VL  - 02
IS  - 2
PB  - Iop Publishing Ltd
KW  - ultra high energy cosmic rays
KW  - cosmic ray experiments
AB  - To interpret the mean depth of cosmic ray air shower maximum and its dispersion, we parametrize those two observables as functions of the first two moments of the ln A distribution. We examine the goodness of this simple method through simulations of test mass distributions. The application of the parameterization to Pierre Auger Observatory data allows one to study the energy dependence of the mean ln A and of its variance under the assumption of selected hadronic interaction models. We discuss possible implications of these dependences in term of interaction models and astrophysical cosmic ray sources.
SN  - 1475-7516
UR  - http://arxiv.org/abs/arXiv:1301.6637
UR  - https://doi.org/10.1088/1475-7516/2013/02/026
DO  - 10.1088/1475-7516/2013/02/026
LA  - English
N1  - WOS:000315576400026
ID  - PierreAugerCollaborationAbreu+Pastor2013
ER  -