409 citations · 4k across the 93 of their papers we have counts for
5 papers · 1 filter
: a new observable for photon-hadron discrimination in hybrid air shower events
M. Niechciol, M. Risse, P. Ruehl +3
To search for ultra-high-energy photons in primary cosmic rays, air shower observables are needed that allow a good separation between primary photons and primary hadrons. We prese…
Inferences on Mass Composition and Tests of Hadronic Interactions from 0.3 to 100 EeV using the water-Cherenkov Detectors of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +403
We present a new method for probing the hadronic interaction models at ultra-high energy and extracting details about mass composition. This is done using the time profiles of the…
Spectral Calibration of the Fluorescence Telescopes of the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +403
We present a novel method to measure precisely the relative spectral response of the fluorescence telescopes of the Pierre Auger Observatory. We used a portable light source based…
Improved bound on isotropic Lorentz violation in the photon sector from extensive air showers
F. R. Klinkhamer, M. Niechciol, M. Risse
Cosmic rays have extremely high particle energies (up to ) and can be used to search for violations of Lorentz invariance. We consider isotropic nonbirefringe…
Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above eV
The Pierre Auger Collaboration, A. Aab, P. Abreu +404
Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arriv…