1999/05/20 by Luiz Americo de Carvalho, de Carvalho, Luiz Americo, Carola Dobrigkeit +1
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex
paper · pdf · doi:10.48550/arxiv.hep-ex/9905037
To be presented at 26th ICRC (Salt Lake City 1999)
arxiv created 1999/05/20 · arxiv updated 2009/11/30
We explore the feasibility of estimating primary cosmic ray composition at ultra high energies from the sum of muon, electron and photon densities and the depth of maximum of extensive air showers detected by the Auger Observatory. From the information of the Fluorescence (Xmax) and water Cerenkov detectors (ρ(1000)) we infere the most probable type of primary which originated the shower. The method is tested simulating Extensive Air Showers (EAS) at energies up to 1020 eV using a version of MOCCA/Sibyll adapted for Dec Alpha Servers. We also discuss some results on the mass composition using the depth of the shower maximum and the lateral distribution of showers in the energy range 1018-1020 eV.