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T: Fachverband Teilchenphysik
T 62: Cosmic rays II
T 62.1: Gruppenbericht
Mittwoch, 1. April 2020, 16:30–16:50, L-3.002
The Pierre Auger Observatory – Status, Results, Prospects — •Michael Schimp for the Pierre Auger collaboration — Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal
The Pierre Auger Observatory is the world’s largest cosmic ray observatory. The surface detector (SD) covers an area of 3000 km2 instrumented with 1660 stations. Surrounding the SD, 27 telescopes at 4 sites comprise the fluorescence detector (FD). The SD stations sample the lateral particle distributions of extensive air showers (EASs) on the ground while the FD measures the longitudinal profile of the EASs. Combined, SD and FD allow for 100 % duty cycle calorimetric EAS detection.
Recent results show that the energy spectrum of UHECRs has more features than known before, and that the UHECR mass composition is best described as mixed with overall increasing primary particle masses towards the highest energies. Additionally, several significant large and medium scale anisotropies have been revealed. Searches for neutrinos and photons have lead to the most significant constraints on their fluxes in a substantial energy and directional range.
An upgrade of the Pierre Auger Observatory, called AugerPrime, is underway. It will add scintillation and radio detectors together with improved electronics to the SD stations. AugerPrime will allow for improved particle identification and therefore enhance the overall UHECR mass composition sensitivity for the full-duty-cycle SD.