Testing model predictions of depth of air-shower maximum and signals in surface detectors using hybrid data of the Pierre Auger Observatory

0578126 - FZÚ 2024 RIV FR eng C - Conference Paper (international conference)
Abdul Halim, A. - Abreu, P. - Aglietta, M. - Bakalová, Alena - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Hamal, Petr - Janeček, Petr - Juryšek, Jakub - Mandát, Dušan - Müller, Ana Laura - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - dos Santos, Eva M. Martins - Schovánek, Petr - Stadelmaier, Maximilian Klaus - Tobiška, Petr - Trávníček, Petr - Vícha, Jakub - Yushkov, Alexey … Total 366 authors
Testing model predictions of depth of air-shower maximum and signals in surface detectors using hybrid data of the Pierre Auger Observatory.
EPJ Web of Conferences. Vol. 283. Les Ulis: E D P Science, 2023 - (De Mitri, I.; Barbato, F.; Boncioli, D.; Evoli, C.; Pagliaroli, G.; Salamida, F.), č. článku 02012. ISSN 2100-014X.
[International symposium on Ultra High Energy Cosmic Rays (UHECR) /6./. L'Aquila (IT), 03.10.2022-07.10.2022]
R&D Projects: GA MŠMT LTT18004; GA MŠMT EF16_013/0001402; GA MŠMT(CZ) EF18_046/0016010
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : hadronic interaction model * Pierre Auger Observatory
OECD category: Particles and field physics
https://www.epj-conferences.org/articles/epjconf/pdf/2023/09/epjconf_uhecr2023_02012.pdf

We present a method for testing the predictions of hadronic interaction models and improving their consistency with observed two-dimensional distributions of the depth of shower maximum, X max, and signal at the ground level as a function of zenith angle. The method relies on the assumption that the mass composition is the same at all zenith angles, while the atmospheric shower development and attenuation depend on composition in a correlated way. In the present work, for each of the three leading LHC-tuned hadronic interaction models, we allow a global shift ∆ X max of the predicted shower maximum, which is the same for every mass and energy, and a rescaling R Had of the hadronic component at the ground level which is constant with the zenith angle. We apply the analysis to 2297 events reconstructed with both the fluorescence and surface detectors of the Pierre Auger Observatory with energies 1018.5−19.0 eV and zenith angles below 60°.
Permanent Link: https://hdl.handle.net/11104/0347186