Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory

Detalhes bibliográficos
Autor(a) principal: Abraham, J.
Data de Publicação: 2008
Outros Autores: Abreu, P., Aglietta, M., Aguirre, C., Allard, D., Allekotte, I., Allen, J., Pepe, Iuri Muniz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/6153
Resumo: Acesso restrito: Texto completo. p. 243-256
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spelling Abraham, J.Abreu, P.Aglietta, M.Aguirre, C.Allard, D.Allekotte, I.Allen, J.Pepe, Iuri MunizAbraham, J.Abreu, P.Aglietta, M.Aguirre, C.Allard, D.Allekotte, I.Allen, J.Pepe, Iuri Muniz2012-06-14T19:38:30Z20080927-6505http://www.repositorio.ufba.br/ri/handle/ri/6153v. 29, n. 4Acesso restrito: Texto completo. p. 243-256A method is developed to search for air showers initiated by photons using data recorded by the surface detector of the Auger Observatory. The approach is based on observables sensitive to the longitudinal shower development, the signal risetime and the curvature of the shower front. Applying this method to the data, upper limits on the flux of photons of 3.8×10-3, View the MathML source above View the MathML source, View the MathML source are derived, with corresponding limits on the fraction of photons being 2.0%, 5.1%, and 31% (all limits at 95% c.l.). These photon limits disfavor certain exotic models of sources of cosmic rays. The results also show that the approach adopted by the Auger Observatory to calibrate the shower energy is not strongly biased by a contamination from photons.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-06-14T19:38:30Z No. of bitstreams: 1 __ac.els-cdn.com_S092765...ba570867bb97acacd4ad79cead6dc.pdf: 719915 bytes, checksum: fc168295058e0bc9d5924c94c16ee7bc (MD5)Made available in DSpace on 2012-06-14T19:38:30Z (GMT). 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dc.title.pt_BR.fl_str_mv Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
dc.title.alternative.pt_BR.fl_str_mv ASTROPARTICLE PHYSICS
title Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
spellingShingle Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
Abraham, J.
title_short Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
title_full Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
title_fullStr Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
title_full_unstemmed Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
title_sort Upper limit on the cosmic-ray photon flux above 1019 eV using the surface detector of the Pierre Auger Observatory
author Abraham, J.
author_facet Abraham, J.
Abreu, P.
Aglietta, M.
Aguirre, C.
Allard, D.
Allekotte, I.
Allen, J.
Pepe, Iuri Muniz
author_role author
author2 Abreu, P.
Aglietta, M.
Aguirre, C.
Allard, D.
Allekotte, I.
Allen, J.
Pepe, Iuri Muniz
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Abraham, J.
Abreu, P.
Aglietta, M.
Aguirre, C.
Allard, D.
Allekotte, I.
Allen, J.
Pepe, Iuri Muniz
Abraham, J.
Abreu, P.
Aglietta, M.
Aguirre, C.
Allard, D.
Allekotte, I.
Allen, J.
Pepe, Iuri Muniz
description Acesso restrito: Texto completo. p. 243-256
publishDate 2008
dc.date.issued.fl_str_mv 2008
dc.date.accessioned.fl_str_mv 2012-06-14T19:38:30Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/6153
dc.identifier.issn.none.fl_str_mv 0927-6505
dc.identifier.number.pt_BR.fl_str_mv v. 29, n. 4
identifier_str_mv 0927-6505
v. 29, n. 4
url http://www.repositorio.ufba.br/ri/handle/ri/6153
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.astropartphys.2008.01.003
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