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Probing hadronic interaction models with the hybrid data of the Pierre Auger Observatory
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SYSNO ASEP 0582241 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Probing hadronic interaction models with the hybrid data of the Pierre Auger Observatory Author(s) Abreu, A. (PT)
Aglietta, M. (IT)
Albury, J.M. (AU)
Bakalová, Alena (FZU-D) ORCID
Blažek, Jiří (FZU-D) ORCID, RID
Boháčová, Martina (FZU-D) RID, ORCID
Chudoba, Jiří (FZU-D) RID, ORCID
Ebr, Jan (FZU-D) RID, ORCID
Hamal, Petr (FZU-D) ORCID
Janeček, Petr (FZU-D) RID, ORCID
Juryšek, Jakub (FZU-D) ORCID
Mandát, Dušan (FZU-D) RID, ORCID
Müller, Ana Laura (FZU-D)
Palatka, Miroslav (FZU-D) RID, ORCID, SAI
Pech, Miroslav (FZU-D) RID, ORCID
Prouza, Michael (FZU-D) RID, ORCID
Řídký, Jan (FZU-D) RID, ORCID
dos Santos, Eva M. Martins (FZU-D) ORCID
Schovánek, Petr (FZU-D) RID, ORCID
Stadelmaier, Maximilian Klaus (FZU-D) ORCID
Tobiška, Petr (FZU-D) ORCID
Trávníček, Petr (FZU-D) RID, ORCID
Vícha, Jakub (FZU-D) RID, ORCID
Yushkov, Alexey (FZU-D) ORCIDNumber of authors 364 Article number 26 Source Title SciPost Physics Proceedings, 13. - Amsterdam : SciPost Foundation, 2023 - ISSN 2666-4003 Number of pages 6 s. Publication form Online - E Action International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2022) /21./ Event date 23.05.2022 - 28.05.2022 VEvent location Online Country IN - India Event type WRD Language eng - English Country NL - Netherlands Keywords hadronic interactions ; ultra-high energies Subject RIV BF - Elementary Particles and High Energy Physics OECD category Particles and field physics R&D Projects LTT18004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF18_046/0016010 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) EF16_013/0001402 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Research Infrastructure AUGER-CZ II - 90102 - Fyzikální ústav AV ČR, v. v. i. Institutional support FZU-D - RVO:68378271 DOI https://doi.org/10.21468/SciPostPhysProc.13.026 Annotation Presently large systematic uncertainties remain in the description of hadronic interactions at ultra-high energies and a fully consistent description of air-shower experimental data is yet to be reached. The amount of data collected by the Pierre Auger Observatory using simultaneously the fluorescence and surface detectors in the energy range 10 18.5 -10 19.0 eV has provided opportunity to perform a multi-parameter test of model predictions. We apply a global method to simultaneously fit the mass composition of cosmic rays and adjustments to the simulated depth of shower maximum, and hadronic signal at ground level. The best description of the hybrid data is obtained for a deeper scale of simulated depth of shower maximum than predicted by hadronic interaction models tuned to the LHC data. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024 Electronic address https://scipost.org/SciPostPhysProc.13.026/pdf
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