Artículo
Measurement of the cosmic ray spectrum above 4 × 1018 eV using inclined events detected with the Pierre Auger Observatory
Allekotte, Ingomar; Asorey, Hernán Gonzalo
; Bertou, Xavier Pierre Louis
; Dasso, Sergio Ricardo
; Dova, Maria Teresa
; Etchegoyen, Alberto
; Freire, Martín Miguel
; Garcia, Beatriz Elena
; Golup, Geraldina Tamara
; Gomez Berisso, Mariano
; González, Nicolás Martín
; Hampel, Matias Rolf
; Hansen, Patricia Maria
; Harari, Diego Dario
; Jarne, Cecilia Gisele
; Josebachuili Ogando, Mariela Gisele
; Melo, Diego Gabriel
; Micheletti, Maria Isabel
; Mollerach, Maria Silvia
; Pallotta, Juan Vicente
; Piegaia, Ricardo Nestor
; Pieroni, Pablo Emanuel
; Platino, Manuel
; Purrello, Víctor Hugo
; Quel, Eduardo Jaime
; Ravignani Guerrero, Diego; Ristori, Pablo Roberto; Roulet, Esteban
; Rovero, Adrian Carlos
; Sanchez, Federico Andrés
; Sciutto, Sergio Juan
; Sidelnik, Iván Pedro
; Suarez, Federico
; Supanitsky, Alberto Daniel
; Taborda Pulgarin, Oscar Alejandro
; Tapia Casanova, Alex Marcelo
; Wahlberg, Hernan Pablo
; Wundheiler, Brian



































Fecha de publicación:
26/08/2015
Editorial:
IOP Publishing
Revista:
Journal of Cosmology and Astroparticle Physics
ISSN:
1475-7516
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A measurement of the cosmic-ray spectrum for energies exceeding 4×1018 eVis presented, which is based on the analysis of showers with zenith angles greater than60◦ detected with the Pierre Auger Observatory between 1 January 2004 and 31 December 2013. The measured spectrum confirms a flux suppression at the highest energies.Above 5.3×1018 eV, the ?ankle?, the flux can be described by a power law E −γ with index γ = 2.70 ± 0.02 (stat) ± 0.1 (sys) followed by a smooth suppression region. For the energy(Es ) at which the spectral flux has fallen to one-half of its extrapolated value in the absence of suppression, we find Es = (5.12 ± 0.25 (stat)−1.2 (sys))×10 eV.
Palabras clave:
Rayos Cosmicos
,
Cosmic Ray Experiments
,
Ultra High Energy Cosmic Rays
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Articulos(CCT - PATAGONIA NORTE)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE
Citación
Allekotte, Ingomar; Asorey, Hernán Gonzalo; Bertou, Xavier Pierre Louis; Dasso, Sergio Ricardo; Dova, Maria Teresa; et al.; Measurement of the cosmic ray spectrum above 4 × 1018 eV using inclined events detected with the Pierre Auger Observatory; IOP Publishing; Journal of Cosmology and Astroparticle Physics; 2015; 49; 26-8-2015; 1-22
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