RT Journal Article
T1 Measurement of the energy spectrum of cosmic rays above 10(18) eV using the Pierre Auger Observatory
A1 Arganda, E.
A1 Arqueros Martínez, Fernando
A1 Blanco Ramos, Francisco
A1 García Pinto, Diego
A1 Monasor, M.
A1 Ortiz Ramis, Montserrat
A1 Rosado Vélez, Jaime
A1 Vázquez Peñas, José Ramón
AB We report a measurement of the flux of cosmic rays with unprecedented precision and Statistics using the Pierre Auger Observatory Based on fluorescence observations in coincidence with at least one Surface detector we derive a spectrum for energies above 10(18) eV We also update the previously published energy spectrum obtained with the surface detector array The two spectra are combined addressing the systematic uncertainties and, in particular. the influence of the energy resolution on the spectral shape The spectrum can be described by a broken power law E-gamma with index gamma = 3 3 below the ankle which is measured at log(10)(E-ankle/eV) = 18 6 Above the ankle the spectrum is described by a power law with index 2 6 followed by a flux suppression, above about log(10)(E/eV) = 19 5, detected with high statistical significance (C) 2010 Elsevier B V All rights reserved
PB Elsevier Science BV
SN 0370-2693
YR 2010
FD 2010-03-08
LK https://hdl.handle.net/20.500.14352/45137
UL https://hdl.handle.net/20.500.14352/45137
LA eng
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NO © 2010 Elsevier B.V.Autoría conjunta: Pierre Auger Collaboration. Artículo firmado por más de 10 autores.The successful installation and commissioning of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support: Comisión Nacional de Energía Atómica, Fundación Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP), Ministério de Ciência e Tecnologia (MCT), Brazil; AVCR AV0Z10100502 and AV0Z10100522, GAAV KJB300100801 and KJB100100904, MSMT-CR LA08016, LC527, 1M06002, and MSM0021620859, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France, Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), France; Bundesministerium für Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Württemberg, HelmholtzGemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Wissenschaft und Forschung, Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst, Baden-Württemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), Italy; Consejo Nacional de Ciencia y Tecnología (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; Ministry of Science and Higher Education, Grant Nos. 1 P03 D 014 30, N202 090 31/0623, and PAP/218/2006, Poland; Fundação para a Ciência e a Tecnologia, Portugal; Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia; Comunidad de Madrid, Consejería de Educación de la Comunidad de Castilla La Mancha, FEDER funds, Ministerio de Ciencia e Innovación, Xunta de Galicia, Spain; Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract Nos. DE-AC02-07CH11359, DE-FR02-04ER41300, National Science Foundation, Grant No. 0450696, The Grainger Foundation, USA; ALFA-EC/HELEN, European Union 6th Framework Program, Grant No. MEIF-CT-2005-025057, European Union 7th Framework Program, Grant No. PIEF-GA-2008-220240, and UNESCO.
NO Unión Europea. FP7
NO Czech Science Foundation, Czech Republic
NO Centre de Calcul IN2P3/CNRS, France
NO Centre National de la Recherche Scientifique (CNRS), France
NO Conseil Regional Ile-de-France, France
NO Departement Physique Nucleaire et Corpusculaire, France
NO Departement Sciences de l'Univers (SDU-INSU/CNRS), Institut Lagrange de Paris (ILP), France
NO Bundesministerium fur Bildung und Forschung (BMBF), Germany
NO Deutsche Forschungsgemeinschaft (DFG), Germany
NO Finanzministerium Baden-Wurttemberg, Germany
NO Helmholtz Alliance for Astroparticle Physics (HAP), Germany
NO Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Germany
NO Ministerium fur Wissenschaft und Forschung, Germany Nordrhein Westfalen, Germany
NO Ministerium fur Wissenschaft Forschung und Kunst Baden-Wurttemberg, Germany
NO Istituto Nazionale di Fisica Nucleare (INFN), Italy
NO Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Italy
NO Gran Sasso Center for Astroparticle Physics (CFA), Italy
NO CETEMPS Center of Excellence, Ministero degli Affari Esteri (MAE), Italy
NO Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands
NO National Centre for Research and Development, Poland
NO National Science Centre, Poland
NO Portuguese national funds, Portugal
NO FEDER funds within Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia (COMPETE), Portugal
NO Romanian Authority for Scientific Research ANCS, Romania
NO CNDI-UEFISCDI partnership projects, Romania
NO Minister of National Education, Programme Space Technology and Advanced Research (STAR), Romania
NO Slovenian Research Agency, Slovenia
NO Comunidad de Madrid
NO FEDER funds, Spain
NO Ministerio de Educacion y Ciencia, Spain
NO Xunta de Galicia, Spain
NO UNESCO
DS Docta Complutense
RD 1 may 2024