PoS - Proceedings of Science
Volume 390 - 40th International Conference on High Energy physics (ICHEP2020) - Parallel: Detectors for Future Facilities (incl. HL-LHC), R&D, Novel Techniques
The Radio detection of inclined showers at the PierreAuger Observatory
S. de Jong* on behalf of the Pierre Auger Collaboration
*corresponding author
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Pre-published on: February 02, 2021
Published on:
Abstract
Ultra-high-energy cosmic rays (UHECR), of energy >10 EeV, arrive at the Earth regularly, but their sources, acceleration mechanisms, details of propagation through the universe, and particle composition remain mysteries. In addition, their interactions with the atmosphere show an unexpectedly high muon flux compared to simulations.
To address these issues, the Pierre Auger Observatory, a hybrid 3000 square km ground based cosmic ray detector, is being upgraded, notably adding a completely new detection layer to measure the radio frequency emission of extensive air showers.
This Radio Detector extends the vertical shower techniques developed in earlier radio arrays, such as the Auger Engineering Radio Array, to horizontal showers, with a precision that is expected to be similar to existing ground array techniques. It will provide a novel measurement for inclined showers, complementary to the other techniques.
Details of the detection technique, the design and production of the full 1660 station Radio Detector and the expected reach in addressing the open questions in UHECR astroparticle physics are presented.
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