INVESTIGADORES
GOMEZ ALBARRACIN Flavia Alejandra
artículos
Título:
Observation of the suppression of the flux of cosmic rays above 4 x 1019 eV
Autor/es:
PIERRE AUGER COLLABORATION; FLAVIA A. GOMEZ ALBARRACIN
Revista:
PHYSICAL REVIEW LETTERS
Editorial:
AMER PHYSICAL SOC
Referencias:
Lugar: New York; Año: 2008 vol. 101 p. 1 - 7
ISSN:
0031-9007
Resumen:
The energy spectrum of cosmic rays above 2.5 × 1018 eV, derived from 20,000 events recorded at the Pierre Auger Observatory, is described. The spectral index of the flux, J / E−, at energies between 4 × 1018 eV and 4 × 1019 eV is 2.69±0.02 (stat) ±0.06 (syst), steepening to 4.2±0.4 (stat) ±0.06 (syst) at higher energies, consistent with the prediction by Greisen and by Zatsepin and Kuzmin.
