RT Journal Article T1 Reconstruction of inclined air showers detected with the pierre Auger Observatory A1 Arqueros Martínez, Fernando A1 Blanco Ramos, Francisco A1 García Pinto, Diego A1 Minaya Flores, Ignacio Andrés A1 Ortiz Ramis, Montserrat A1 Rosado Vélez, Jaime A1 Vázquez Peñas, José Ramón AB We describe the method devised to reconstruct inclined cosmic-ray air showers with zenith angles greater than 60 degrees detected with the surface array of the Pierre Auger Observatory. The measured signals at the ground level are fitted to muon density distributions predicted with atmospheric cascade models to obtain the relative shower size as an overall normalization parameter. The method is evaluated using simulated showers to test its performance. The energy of the cosmic rays is calibrated using a sub-sample of events reconstructed with both the fluorescence and surface array techniques. The reconstruction method described here provides the basis of complementary analyses including an independent measurement of the energy spectrum of ultra-high energy cosmic rays using very inclined events collected by the Pierre Auger Observatory. PB IOP Publising LTD SN 1475-7516 YR 2014 FD 2014 LK https://hdl.handle.net/20.500.14352/34784 UL https://hdl.handle.net/20.500.14352/34784 LA eng NO © IOP Publising LTD 2014.Autoría conjunta: Pierre Auger Collaboration. Artículo firmado por mas de 400 autores.We are very grateful to the following agencies and organizations for financial support: Comision Nacional de Energia Atomica, Fundacion Antorchas, Gobierno De La Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings and Valle Las Lenas, in gratitude for their continuing cooperation over land access, Argentina; the Australian Research Council; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ), Sao Paulo Research Foundation (FAPESP) Grants # 2010/07359-6, # 1999/05404-3, Ministerio de Ciencia e Tecnologia (MCT), Brazil; MSMT-CR LG13007, 7AMB14AR005, CZ.1.05/2.1.00/03.0058 and the Czech Science Foundation grant 14-17501S, Czech Republic; Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Regional Ile-de-France, Departement Physique Nucleaire et Corpusculaire (PNC-IN2P3/CNRS), Departement Sciences de l'Univers (SDU-INSU/CNRS), France; Bundesministerium fur Bildung und Forschung (BMBF), Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Wurttemberg, Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium fur Wissenschaft und Forschung, Nordrhein Westfalen, Ministerium fur Wissenschaft, Forschung und Kunst, Baden-Wurttemberg, Germany; Istituto Nazionale di Fisica Nucleare (INFN), Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR), Gran Sasso Center for Astroparticle Physics (CFA), CETEMPS Center of Excellence, Italy; Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico; Ministerie van Onderwijs, Cultuur en Wetenschap, Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands; National Centre for Research and Development, Grant Nos. ERA-NET-ASPERA/01/11 and ERA-NET-ASPERA/02/11, National Science Centre, Grant Nos. 2013/08/M/ST9/00322, 2013/08/M/ST9/00728 and 2013/10/M/ST9/00062, Poland; Portuguese national funds and FEDER funds within COMPETE - Programa Operacional Factores de Competitividade through Fundacao para a Ciencia e a Tecnologia, Portugal; Romanian Authority for Scientific Research ANCS, CNDI-UEFISCDI partnership projects nr.20/2012 and nr.194/2012, project nr.1/ASPERA2/2012 ERA-NET, PN-II-RU-PD-2011-3-0145-17, and PN-II-RU-PD-2011-3-0062, the Minister of National Education, Programme for research - Space Technology and Advanced Research - STAR, project number 83/2013, Romania; Slovenian Research Agency, Slovenia; Comunidad de Madrid, FEDER funds, Ministerio de Educacion y Ciencia, Xunta de Galicia, Spain; The Leverhulme Foundation, Science and Technology Facilities Council, United Kingdom; Department of Energy, Contract No. DE-AC02-07CH11359, DE-FR02-04ER41300, and DE-FG02-99ER41107, National Science Foundation, Grant No. 0450696, The Grainger Foundation, U.S.A.; NAFOSTED, Vietnam; Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, European Union 7th Framework Program, Grant No. PIRSES-2009-GA-246806; and UNESCO. NO Unión Europea. FP7 NO Czech Republic NO Centre de Calcul NO Centre National de la Recherche Scientifique (CNRS) NO Conseil Regional Ile-de-France NO Departement Physique Nucleaire et Corpusculaire NO Departement Sciences de l'Univers (SDU-INSU/CNRS) NO Institut Lagrange de Paris, France NO Bundesministerium fur Bildung und Forschung (BMBF) NO Deutsche Forschungsgemeinschaft (DFG) NO Finanzministerium Baden-Wurttemberg NO Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF) NO Ministerium fur Wissenschaft und Forschung, Nordrhein Westfalen NO Istituto Nazionale di Fisica Nucleare (INFN) NO Ministero dell'Istruzione, dell'Universita e della Ricerca (MIUR) NO Ministerium fur Wissenschaft Forschung und Kunst Baden-Wurttemberg, Germany NO Gran Sasso Center for Astroparticle Physics (CFA) NO CETEMPS Center of Excellence, Italy NO Ministerie van Onderwijs, Cultuur en Wetenschap, Netherlands NO Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) NO 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 and FEDER funds within COMPETE - Programa Operacional Factores de Competitividade through Fundaçào para a Ciència e a Tecnologia, Portuga NO Romanian Authority for Scientific Research ANCS NO CNDI-UEFISCDI NO Minister of National Education NO Programme for research - Space Technology and Advanced Research - STAR, Romania NO Comunidad de Madrid, FEDER funds NO Ministerio de Educación y Ciencia, Spain NO Xunta de Galicia, Spain NO Leverhulme Foundation NO Science and Technology Facilities Council, United Kingdom NO Department of Energy NO Czech Science Foundation NO European Union 7th Framework Program NO UNESCO DS Docta Complutense RD 7 abr 2025