. . . "Allekotte, I." . . "Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^17.8 eV" . "Ahn, EJ" . "Badescu, A. M." . "25"^^ . "Barber, KB" . . . . "Aminaei, A." . "Aglietta, M." . . . . "Abreu, P." . "RIV/00216208:11320/14:10289904!RIV15-MSM-11320___" . "487"^^ . "Baus, C." . "Albuquerque, IFM" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "12" . "Allison, P." . "Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^17.8 eV" . . . "Andringa, S." . . . "Aab, A." . "Bauml, J." . "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."@en . . "Al Samarai, I." . "[A7AAF306F25C]" . . "http://dx.doi.org/10.1103/PhysRevD.90.122005" . . "Novotn\u00FD, Vladim\u00EDr" . "10.1103/PhysRevD.90.122005" . "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." . "Arqueros, F." . . "Allen, J." . . "Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^17.8 eV"@en . "2"^^ . "Assis, P." . "Ave, M." . "Anchordoqui, L." . . "Aublin, J." . "Nosek, Dalibor" . "11320" . "Ambrosio, M." . . "Avila, G." . . "Alvarez-Munniz, J." . . "Aramo, C." . "Asorey, H." . "Physical Review D - Particles, Fields, Gravitation and Cosmology" . "Castillo, J. A." . "90" . "Batista, R. A." . "Avenier, M." . "1550-7998" . "10^17.8; energies; Measurements; Observatory; Auger; Pierre; profiles; air-shower; maximum; Depth"@en . "10299" . "RIV/00216208:11320/14:10289904" . "Depth of maximum of air-shower profiles at the Pierre Auger Observatory. I. Measurements at energies above 10^17.8 eV"@en . . "Almela, A." . . . "I, P(7AMB14AR005), P(GA14-17501S), P(LG13007)" .