Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory

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 suppressio...

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Detalles Bibliográficos
Autores principales: Dova, María Teresa, Hansen, Patricia María, Jarne, Cecilia Gisele, Mariazzi, Analisa Gabriela, Sciutto, Sergio Juan, Wahlberg, Hernán Pablo, The Pierre Auger Collaboration
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Física
Cosmic ray spectrum
Pierre auger
Showers
Ultra high energy cosmic rays
Cosmic ray experiments
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/97334
https://ri.conicet.gov.ar/11336/47691
http://iopscience.iop.org/article/10.1088/1475-7516/2015/08/049/meta
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-97334
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Cosmic ray spectrum
Pierre auger
Showers
Ultra high energy cosmic rays
Cosmic ray experiments
spellingShingle Física
Cosmic ray spectrum
Pierre auger
Showers
Ultra high energy cosmic rays
Cosmic ray experiments
Dova, María Teresa
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
topic_facet Física
Cosmic ray spectrum
Pierre auger
Showers
Ultra high energy cosmic rays
Cosmic ray experiments
description 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.
format Articulo
Articulo
author Dova, María Teresa
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_facet Dova, María Teresa
Hansen, Patricia María
Jarne, Cecilia Gisele
Mariazzi, Analisa Gabriela
Sciutto, Sergio Juan
Wahlberg, Hernán Pablo
The Pierre Auger Collaboration
author_sort Dova, María Teresa
title Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
title_short Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
title_full Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
title_fullStr Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
title_full_unstemmed Measurement of the cosmic ray spectrum above 4×10^<SUP>18</SUP> eV using inclined events detected with the Pierre Auger Observatory
title_sort measurement of the cosmic ray spectrum above 4×10^<sup>18</sup> ev using inclined events detected with the pierre auger observatory
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/97334
https://ri.conicet.gov.ar/11336/47691
http://iopscience.iop.org/article/10.1088/1475-7516/2015/08/049/meta
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