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Estimation of the mass composition of ultra-high energy cosmic rays with the Pierre Auger Observatory

Pierre Auger Collaboration; Tkachenko, Olena

Abstract (englisch):
The mass composition of ultra-high energy cosmic rays (UHECRs) is of crucial importance for the understanding their origin. One of the most robust techniques for estimation of the mass composition is based on the depth of atmospheric shower maximum, Xmax, as measured by the fluorescence detectors of the Pierre Auger Observatory.
In this talk we present a study of the composition of UHECRs from the Xmax distributions using the Markov Chain Monte Carlo (MCMC) algorithm. We estimate the fractions of different mass groups as a function of energy and we discuss the corresponding statistical and systematic uncertainties.

Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Vortrag
Jahr 2020
Sprache Englisch
Identifikator KITopen-ID: 1000105648
HGF-Programm 51.03.03 (POF III, LK 01)
Veranstaltung 84. Jahrestagung DPG und DPG-Frühjahrstagung der Sektion Materie und Kosmos (SMuK 2020), Bonn, 29.03.2020 – 03.04.2020
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