A measurement of the muon number in showers using inclined events recorded at the Pierre Auger Observatory

Abstract

The average muon content of air showers with zenith angles exceeding 62◦ is obtained as a function of calorimetric energy from events measured simultaneously with the Surface Detector Array and fluorescence telescopes of the Pierre Auger Observatory using a reconstruction method specifically designed for inclined showers. The results are presented in different energy bins above 4E18 eV and compared to predictions from current hadronic interaction models for different primary particles.