Measurement of the average shape of longitudinal profiles of cosmic-ray air showers at the Pierre Auger Observatory

0511778 - FZÚ 2021 RIV GB eng J - Článek v odborném periodiku
Aab, A. - Abreu, P. - Aglietta, M. - Bakalová, Alena - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Juryšek, Jakub - Mandát, Dušan - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - dos Santos, Eva M. Martins - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub - Yushkov, Alexey … celkem 387 autorů
Measurement of the average shape of longitudinal profiles of cosmic-ray air showers at the Pierre Auger Observatory.
Journal of Cosmology and Astroparticle Physics. Roč. 2019, č. 3 (2019), s. 1-19, č. článku 018. ISSN 1475-7516. E-ISSN 1475-7516
Grant CEP: GA MŠMT LTT18004; GA MŠMT EF16_013/0001402
Grant ostatní: OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Výzkumná infrastruktura: AUGER-CZ - 90038
Institucionální podpora: RVO:68378271
Klíčová slova: cosmic rays detectors * ultra high energy * cosmic rays
Obor OECD: Optics (including laser optics and quantum optics)
Impakt faktor: 5.210, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1088/1475-7516/2019/03/018

The profile of the longitudinal development of showers produced by ultra-high energy cosmic rays carries information related to the interaction properties of the primary particles with atmospheric nuclei. In this work, we present the first measurement of the average shower pro file in traversed atmospheric depth at the Pierre Auger Observatory. The shapes of profiles are well reproduced by the Gaisser-Hillas parametrization within the range studied, for E > 10(17.8) eV. A detailed analysis of the systematic uncertainties is performed using ten years of data and a full detector simulation. The average shape is quantified using two variables related to the width and asymmetry of the profile, and the results are compared with predictions of hadronic interaction models for different primary particles.
Trvalý link: http://hdl.handle.net/11104/0302025