An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory

Detalhes bibliográficos
Autor(a) principal: Abraham, J.
Data de Publicação: 2007
Outros Autores: Aglietta, M., Aguirre, C., Allard, D., Pepe, Iuri Muniz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/15910
Resumo: p. 155–168
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spelling Abraham, J.Aglietta, M.Aguirre, C.Allard, D.Pepe, Iuri MunizAbraham, J.Aglietta, M.Aguirre, C.Allard, D.Pepe, Iuri Muniz2014-09-09T15:04:50Z20070927-6505http://repositorio.ufba.br/ri/handle/ri/15910v. 27, n. 2-3p. 155–168An upper limit of 16% (at 95% c.l.) is derived for the photon fraction in cosmic rays with energies greater than 1019 eV, based on observations of the depth of shower maximum performed with the hybrid detector of the Pierre Auger Observatory. This is the first such limit on photons obtained by observing the fluorescence light profile of air showers. This upper limit confirms and improves on previous results from the Haverah Park and AGASA surface arrays. Additional data recorded with the Auger surface detectors for a subset of the event sample support the conclusion that a photon origin of the observed events is not favored.Submitted by Suelen Reis (suziy.ellen@gmail.com) on 2014-03-10T13:25:58Z No. of bitstreams: 1 1-s2.0-S0927650506001587-main.pdf: 310283 bytes, checksum: 614cc2d4304e1cc4f4a30285da6a6075 (MD5)Approved for entry into archive by Rodrigo Meirelles (rodrigomei@ufba.br) on 2014-09-09T15:04:50Z (GMT) No. of bitstreams: 1 1-s2.0-S0927650506001587-main.pdf: 310283 bytes, checksum: 614cc2d4304e1cc4f4a30285da6a6075 (MD5)Made available in DSpace on 2014-09-09T15:04:50Z (GMT). No. of bitstreams: 1 1-s2.0-S0927650506001587-main.pdf: 310283 bytes, checksum: 614cc2d4304e1cc4f4a30285da6a6075 (MD5) Previous issue date: 2007http://dx.doi.org/10.1016/j.astropartphys.2006.10.004reponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBACosmic raysUltra-high energy photonsExtensive air showersPierre Auger ObservatoryAn upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger ObservatoryAstroparticle Physicsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengORIGINAL1-s2.0-S0927650506001587-main.pdf1-s2.0-S0927650506001587-main.pdfapplication/pdf310283https://repositorio.ufba.br/bitstream/ri/15910/1/1-s2.0-S0927650506001587-main.pdf614cc2d4304e1cc4f4a30285da6a6075MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/15910/2/license.txt0d4b811ef71182510d2015daa7c8a900MD52TEXT1-s2.0-S0927650506001587-main.pdf.txt1-s2.0-S0927650506001587-main.pdf.txtExtracted texttext/plain66229https://repositorio.ufba.br/bitstream/ri/15910/3/1-s2.0-S0927650506001587-main.pdf.txt42b5e96b46a7d12637a16a5c5dbf5fabMD53ri/159102022-08-26 11:02:26.832oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-26T14:02:26Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
dc.title.alternative.pt_BR.fl_str_mv Astroparticle Physics
title An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
spellingShingle An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
Abraham, J.
Cosmic rays
Ultra-high energy photons
Extensive air showers
Pierre Auger Observatory
title_short An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
title_full An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
title_fullStr An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
title_full_unstemmed An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
title_sort An upper limit to the photon fraction in cosmic rays above 1019 eV from the Pierre Auger Observatory
author Abraham, J.
author_facet Abraham, J.
Aglietta, M.
Aguirre, C.
Allard, D.
Pepe, Iuri Muniz
author_role author
author2 Aglietta, M.
Aguirre, C.
Allard, D.
Pepe, Iuri Muniz
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Abraham, J.
Aglietta, M.
Aguirre, C.
Allard, D.
Pepe, Iuri Muniz
Abraham, J.
Aglietta, M.
Aguirre, C.
Allard, D.
Pepe, Iuri Muniz
dc.subject.por.fl_str_mv Cosmic rays
Ultra-high energy photons
Extensive air showers
Pierre Auger Observatory
topic Cosmic rays
Ultra-high energy photons
Extensive air showers
Pierre Auger Observatory
description p. 155–168
publishDate 2007
dc.date.issued.fl_str_mv 2007
dc.date.accessioned.fl_str_mv 2014-09-09T15:04:50Z
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://repositorio.ufba.br/ri/handle/ri/15910
dc.identifier.issn.none.fl_str_mv 0927-6505
dc.identifier.number.pt_BR.fl_str_mv v. 27, n. 2-3
identifier_str_mv 0927-6505
v. 27, n. 2-3
url http://repositorio.ufba.br/ri/handle/ri/15910
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.2006.10.004
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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instname_str Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
collection Repositório Institucional da UFBA
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