Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger Observatory

0483098 - FZÚ 2018 RIV GB eng J - Článek v odborném periodiku
Aab, A. - Abreu, P. - Aglietta, M. - Blažek, Jiří - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Mandát, Dušan - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub … celkem 410 autorů
Impact of atmospheric effects on the energy reconstruction of air showers observed by the surface detectors of the Pierre Auger Observatory.
Journal of Instrumentation. Roč. 12, č. 2 (2017), s. 1-23, č. článku P02006. ISSN 1748-0221. E-ISSN 1748-0221
Grant CEP: GA MŠMT LM2015038; GA MŠMT LG15014; GA ČR(CZ) GA14-17501S
Institucionální podpora: RVO:68378271
Klíčová slova: Cherenkov detectors * data analysis * large detector systems for particle and astroparticle physics * systematic effects
Obor OECD: Particles and field physics
Impakt faktor: 1.258, rok: 2017

Atmospheric conditions, such as the pressure (P), temperature (T) or air density (rho proportional to P/T), affect the development of extended air showers initiated by energetic cosmic rays. We study the impact of the atmospheric variations on the reconstruction of air showers with data from the arrays of surface detectors of the Pierre Auger Observatory, considering separately the one with detector spacings of 1500m and the one with 750m spacing. We observe modulations in the event rates that are due to the influence of the air density and pressure variations on the measured signals, from which the energy estimators are obtained. We show how the energy assignment can be corrected to account for such atmospheric effects.
Trvalý link: http://hdl.handle.net/11104/0278511