Počet záznamů: 1  

Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10.sup.17.8./sup.  eV

  1. 1.
    0441353 - FZU-D 2015 RIV US eng J - Článek v odborném periodiku
    Aab, A. - Abreu, P. - Aglietta, M. - Boháčová, Martina - Chudoba, Jiří - Ebr, Jan - Mandát, Dušan - Nečesal, Petr - Palatka, Miroslav - Pech, Miroslav - Prouza, Michael - Řídký, Jan - Schovánek, Petr - Trávníček, Petr - Vícha, Jakub
    Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 1017.8  eV.
    Physical Review D: Particles, Fields, Gravitation and Cosmology. Roč. 90, č. 12 (2014), "122005-1"-"122005-25". ISSN 1550-7998
    Grant CEP: GA MŠk(CZ) 7AMB14AR005; GA MŠk(CZ) LG13007; GA ČR(CZ) GA14-17501S
    Institucionální podpora: RVO:68378271
    Klíčová slova: astroparticle physics * Pierre Auger Observatory * cosmic rays * air showers * depth of maximum * Xmax
    Kód oboru RIV: BF - Elementární částice a fyzika vys. energií
    Impakt faktor: 4.643, rok: 2014

    We report a study of the distributions of the depth of maximum, Xmax, of extensive air-shower profiles with energies above 1017.8  eV as observed with the fluorescence telescopes of the Pierre Auger Observatory. The analysis method for selecting a data sample with minimal sampling bias is described in detail as well as the experimental cross-checks and systematic uncertainties. Furthermore, we discuss the detector acceptance and the resolution of the Xmax measurement and provide parametrizations thereof as a function of energy. The energy dependence of the mean and standard deviation of the Xmax distributions are compared to air-shower simulations for different nuclear primaries and interpreted in terms of the mean and variance of the logarithmic mass distribution at the top of the atmosphere
    Trvalý link: http://hdl.handle.net/11104/0244379