SMuK 2023 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 93: Exp. Methods – Scint., HESS, Auger
T 93.5: Vortrag
Mittwoch, 22. März 2023, 18:30–18:45, POT/0081
Trigger Concept for the Detection of Photon Air Showers with the AugerPrime Radio Detector* — •Jannis Pawlowsky for the Pierre Auger collaboration — Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
The Pierre Auger Observatory is the largest Cosmic Ray (CR) observatory
with a size of ≈ 3000 km2. Its size makes it feasible to not only look for CRs but
also for presumably rare primaries like photons at energies larger than 1 EeV.
Strong upper limits on the diffuse photon flux have been set in the past using the Water Cherenkov Detector (WCD). Additionally, air showers with photon-like properties were
detected. For these photon candidate events, however, an uncertainty remains
regarding whether they are of photon origin or possibly misinterpreted hadrons.
With the AugerPrime upgrade, the WCD is complemented by the Radio Detector
(RD). The combination of both detectors yields new information about air showers and will improve primary identification. Here, inclined photon
showers are of special interest. We will present a stand-alone RD trigger concept to detect photon air showers with negligible particle footprints. It will be shown that the trigger is compatible with given hardware limitations and the noise level at the Pierre Auger Observatory. The status and results of a first hardware implementation is discussed. We will quantify the trigger efficiency of photon air showers for different configurations of the trigger.
*Gefördert durch die BMBF Verbundforschung Astroteilchenphysik (Vorhaben 05A20PX1)