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oai:docta.ucm.es:20.500.14352/450782023-08-25T14:39:34Zcom_20.500.14352_14col_20.500.14352_15

00925njm 22002777a 4500 dc Arganda, E. author Arqueros Martínez, Fernando author Blanco Ramos, Francisco author García Pinto, Diego author Minaya Flores, Ignacio Andrés author Ortiz Ramis, Montserrat author Rosado Vélez, Jaime author Vázquez Peñas, José Ramón author 2012-08 The energy spectrum of ultra-high energy cosmic rays above 10(18)eV is measured using the hybrid events collected by the Pierre Auger Observatory between November 2005 and September 2010. The large exposure of the Observatory allows the measurement of the main features of the energy spectrum with high statistics. Full Monte Carlo simulations of the extensive air showers (based on the CORSIKA code) and of the hybrid detector response are adopted here as an independent cross check of the standard analysis (Phys. Lett. B 685, 239 (2010)). The dependence on mass composition and other systematic uncertainties are discussed in detail and, in the full Monte Carlo approach, a region of confidence for flux measurements is defined when all the uncertainties are taken into account. An update is also reported of the energy spectrum obtained by combining the hybrid spectrum and that measured using the surface detector array. 2190-5444 10.1140/epjp/i2012-12087-9 https://hdl.handle.net/20.500.14352/45078 http://dx.doi.org/10.1140/epjp/i2012-12087-9 http://arxiv.org/abs/1208.6574 http://link.springer.com/ Measurement of the cosmic ray energy spectrum using hybrid events of the Pierre Auger Observatory