INVESTIGADORES
GONZALEZ Nicolas Martin
artículos
Título:
Measurement of the cosmic ray spectrum above 4 × 1018 eV using inclined events detected with the Pierre Auger Observatory
Autor/es:
THE PIERRE AUGER COLLABORATION; N. GONZÁLEZ
Revista:
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS
Editorial:
IOP PUBLISHING LTD
Referencias:
Lugar: Londres; Año: 2015 vol. 2015
ISSN:
1475-7516
Resumen:
A measurement of the cosmic-ray spectrum for energies exceeding4×1018 eV is presented, which is based on the analysis of showerswith zenith angles greater than 60∘ detected with the Pierre AugerObservatory between 1 January 2004 and 31 December 2013. The measured spectrumconfirms a flux suppression at the highest energies. Above 5.3×1018eV, the "ankle", the flux can be described by a power law E−γ withindex γ=2.70±0.02(stat)±0.1(sys) followed bya smooth suppression region. For the energy (Es) at which thespectral flux has fallen to one-half of its extrapolated value in the absenceof suppression, we findEs=(5.12±0.25(stat)+1.0−1.2(sys))×1019eV.
