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A complete model of the signal in surface detector arrays and its application for the reconstruction of mass-sensitive observables

Stadelmaier, Maximilian 1; Roth, Markus 1; Schmidt, David 2; Veberic, Darko 1
1 Institut für Astroteilchenphysik (IAP), Karlsruher Institut für Technologie (KIT)
2 Institut für Experimentelle Teilchenphysik (ETP), Karlsruher Institut für Technologie (KIT)


The principle of air-shower universality yields a method of understanding extensive air showers of UHECRs as a superposition of different particle components whose spatial and temporal distributions follow individual analytical profile functions. We present a model of the expected densities of particles in time and space that uses the depth of the shower maximum, X$_{max}$, and the relative muonic content of the shower, R$_{µ}$ , as input parameters besides the shower geometry and energy. The model is parametrized using simulated showers using different hadronic interaction models. Furthermore, we present results for the reconstruction of X$_{max}$ and R$_{µ}$ that allow for an event-by-event estimation of the mass of the primary particle, based on the responses of the water-Cherenkov and scintillator surface detectors of the Pierre Auger Observatory.

Verlagsausgabe §
DOI: 10.5445/IR/1000138543
Veröffentlicht am 06.10.2021
DOI: 10.22323/1.395.0432
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Astroteilchenphysik (IAP)
Institut für Experimentelle Teilchenphysik (ETP)
Publikationstyp Proceedingsbeitrag
Publikationsdatum 18.03.2022
Sprache Englisch
Identifikator ISSN: 1824-8039
KITopen-ID: 1000138543
HGF-Programm 51.13.03 (POF IV, LK 01) Kosmische Strahlung Auger
Erschienen in 37th International Cosmic Ray Conference (ICRC 2021): July 12th – 23rd, 2021, Online – Berlin, Germany
Veranstaltung 37th International Cosmic Ray Conference (ICRC 2021), Online, 12.07.2021 – 23.07.2021
Verlag Scuola Internazionale Superiore di Studi Avanzati (SISSA)
Seiten Art.-Nr.: 432
Serie Proceedings of Science ; 395
Vorab online veröffentlicht am 06.07.2021
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