Heidelberg 2022 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
T: Fachverband Teilchenphysik
T 19: Cosmic Ray 1
T 19.1: Gruppenbericht
Montag, 21. März 2022, 16:15–16:35, T-H32
The Pierre Auger Observatory – Status, Results, Prospects — •Philip Ruehl for the Pierre Auger collaboration — Center for Particle Physics Siegen, Experimental Astroparticle Physics, University of Siegen
With an instrumented area of about 3000 km2, the Pierre Auger Observatory is the world’s largest experiment for measuring cosmic particles. Its surface detector (SD) array is comprised of 1660 water Cherenkov detectors with a next-neighbor spacing of 1.5 km. The atmosphere above the SD is monitored by 27 fluorescence telescopes.
Precision measurements of the cosmic-ray energy spectrum have recently been extended down to 1017 eV using the SD-750 low-energy enhancement of the SD array, showing a gradual transition of the spectral index just above the “knee”. A first measurement of the fluctuations in the muon content of air showers at ultra-high energies can be used to constrain hadronic interaction models trying to explain the observed muon deficit in air shower simulations. Recent advancements in the application of deep neural networks to Auger data enabled the successful reconstruction of Xmax from SD data and an extraction of the muon component of simulated SD signal traces. The construction of the AugerPrime upgrade together with the AMIGA enhancement is in progress and will further enhance the mass discrimination power of the Observatory with additional scintillation and radio detector units in the SD array.
The Pierre Auger project is supported by BMBF Verbundforschung Astroteilchenphysik.