Measurement of the cosmic-ray energy spectrum above 2.5 × 10.sup.18./sup. eV using the Pierre Auger Observatory

0535533 - FZÚ 2021 RIV US eng J - Článek v odborném periodiku
Aab, A. - Abreu, A. - 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 - Tobiška, Petr - Trávníček, Petr - Vícha, Jakub - Yushkov, Alexey … celkem 382 autorů
Measurement of the cosmic-ray energy spectrum above 2.5 × 10¹⁸ eV using the Pierre Auger Observatory.
Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 102, č. 6 (2020), s. 1-27, č. článku 062005. ISSN 1550-7998
Grant CEP: GA MŠMT LTT18004; GA MŠMT(CZ) LM2018102; GA MŠMT LM2015038; GA MŠMT(CZ) EF18_046/0016010; GA MŠMT EF16_013/0001402
Grant ostatní: OP VVV - AUGERII.CZ(XE) CZ.02.1.01/0.0/0.0/18_046/0016010; OP VVV - AUGER-CZ(XE) CZ.02.1.01/0.0/0.0/16_013/0001402
Institucionální podpora: RVO:68378271
Klíčová slova: Pierre Auger Obervatory * ultrahigh energy cosmic ray * fluorescence detector * cosmic-ray energy
Obor OECD: Particles and field physics
Impakt faktor: 4.833, rok: 2019
Způsob publikování: Open access

We report a measurement of the energy spectrum of cosmic rays for energies above 2.5 x 10(18) eV based on 215,030 events recorded with zenith angles below 60 degrees. A key feature of the work is that the estimates of the energies are independent of assumptions about the unknown hadronic physics or of the primary mass composition. The measurement is the most precise made hitherto with the accumulated exposure being so large that the measurements of the flux are dominated by systematic uncertainties except at energies above 5 x 10(19) eV.
Trvalý link: http://hdl.handle.net/11104/0313538