Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory

Author(s): A. Aab et al. (Pierre Auger Collaboration)

The Pierre Auger Observatory has detected more muons from cosmic-ray showers than predicted by the most up-to-date particle-physics models.

[Phys. Rev. Lett. 117, 192001] Published Mon Oct 31, 2016