Wednesday, July 3, 2013

1307.0324 (Ioana C. Maris et al.)

Measurement of the energy spectrum of cosmic rays at the highest energies using data from Pierre Auger Observatory    [PDF]

Ioana C. Maris, for the Pierre Auger Collaboration
We report a measurement of the flux of cosmic rays with unprecedented precision and statistics using data from the Pierre Auger Observatory. Based on fluorescence observations in coincidence with at least one station of the surface detector we derive a spectrum for energies above 1 EeV. We also report on the energy spectra obtained with the surface detector array. The spectral features are presented in detail and the impact of systematic uncertainties on these features are addressed.
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