2011

Measurements of the Cosmic Ray Composition with Air Shower Experiments

Kampert, Karl-Heinz, Unger, Michael

Understand

In this paper we review air shower data related to the mass composition of cosmic rays above 10$^{15}$ eV.

  • After explaining the basic relations between air shower observables and the primary mass and energy of cosmic rays, we present different approaches and results of composition studies with surface detectors.
  • Furthermore, we discuss measurements of the longitudinal development of air showers from non-imaging Cherenkov detectors and fluorescence telescopes.
  • The interpretation of these experimental results in terms of primary mass is highly susceptible to the theoretical uncertainties of hadronic interactions in air showers.

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