30TH INTERNATIONAL COSMIC RAY CONFERENCE Muon spectra reconstructed from inclined air showers measured by KASCADE- Grande

Inclined air showers (i.e. showers with zenith angle above 40 degrees) are registered by the KASCADE-Grande experiment, which is designed to address fundamental questions about the origin, composition and acceleration mechanisms of primary cosmic rays between 10 and 10 eV. Despite the aggravate reconstruction due to the thin scintillation detectors used in KASCADE-Grande these inclined events are valuable since they offer a good opportunity to both, study the penetrating component of the air showers and cross-checks of hadronic interaction models. Working in this direction, a first analysis of the KASCADE-Grande data from inclined events has been performed. In particular, the muon spectra have been reconstructed for different zenith angle intervals and features of the resulting spectra have been studied and confronted with expectations from Monte Carlo simulations.