Interpretation of the Depths of Maximum of Extensive Air Showers Measured by the Pierre Auger Observatory

Abstract

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.

15 pages, 6 figures

References in corpus (6)

• Measurements of the Cosmic Ray Composition with Air Shower Experiments
• Measurement of the proton-air cross-section at $\sqrt{s}=57$ TeV with the Pierre Auger Observatory
• New facts about muon production in Extended Air Shower simulations
• The Pierre Auger Observatory I: The Cosmic Ray Energy Spectrum and Related Measurements
• The Pierre Auger Observatory II: Studies of Cosmic Ray Composition and Hadronic Interaction models
• The non-linearity between <ln A> and <Xmax> induced by the acceptance of fluorescence telescopes

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