Report on Tests and Measurements of Hadronic Interaction Properties with Air Showers

  title={Report on Tests and Measurements of Hadronic Interaction Properties with Air Showers},
  author={Hans Peter Dembinski and Juan Carlos Arteaga-Vel'azquez and Lorenzo Cazon and Ruben Conceiccao and J Gonz{\'a}lez and Yoshitaka Itow and D. Ivanov and Nikolai N. Kalmykov and I. I. Karpikov and Steffen Muller and Tanguy Pierog and Felix Riehn and Markus Roth and T. K. Sako and Dennis Soldin and R. Takeishi and G. H. Mickey Thompson and S. V. Troitsky and I. V. Yashin and E. A. Zadeba and Ya. V. Zhezher},
  journal={EPJ Web of Conferences},
We present a summary of recent tests and measurements of hadronic interaction properties with air showers. This report has a special focus on muon density measurements. Several experiments reported deviations between simulated and recorded muon densities in extensive air showers, while others reported no discrepancies. We combine data from eight leading air shower experiments to cover shower energies from PeV to tens of EeV. Data are combined using the z-scale, a unified reference scale based… 

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