Measurement of the proton-air cross section at root s=57 TeV with the Pierre Auger Observatory
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
07/11/2013
07/11/2013
2012
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Resumo |
We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the distribution of the depths of shower maxima observed with the Pierre Auger Observatory: systematic uncertainties are studied in detail. Analyzing the tail of the distribution of the shower maxima, a proton-air cross section of [505 +/- 22(stat)(-36)(+28)(syst)] mb is found. Comision Nacional de Energia Atomica Comision Nacional de Energia Atomica Fundacion Antorchas Fundacion Antorchas Gobierno De La Provincia de Mendoza Gobierno De La Provincia de Mendoza Municipalidad de Malargue Municipalidad de Malargue NDM Holdings NDM Holdings Valle Las Lenas, Argentina Valle Las Lenas, Argentina Australian Research Council Australian Research Council Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) Financiadora de Estudos e Projetos (FINEP) Financiadora de Estudos e Projetos (FINEP) Fundacao de Amparo a Pesquisa do Estado de Rio de Janeiro (FAPERJ) Fundacao de Amparo a Pesquisa do Estado do Rio de Janeiro (FAPERJ) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) Ministerio de Ciencia e Tecnologia (MCT), Brazil Ministerio de Ciencia e Tecnologia (MCT), Brazil AVCR AVCR [AV0Z10100502, AV0Z10100522] GAAV GAAV [KJB100100904] MSMTCR, Czech Republic MSMT-CR Czech Republic [LA08016, LC527, 1M06002, MEB111003, MSM0021620859] Centre de Calcul Centre de Calcul [IN2P3/CNRS] Centre National de la Recherche Scientifique (CNRS) Centre National de la Recherche Scientifique (CNRS) Conseil Regional Ile-de-France, Departement Physique Nucleaire et Corpusculaire [PNC-IN2P3/CNRS] Conseil Regional IledeFrance, Departement Physique Nucleaire et Corpusculaire Departement Sciences de l'Univers (SDU-INSU/CNRS), France Departement Sciences de lUnivers (SDUINSU/CNRS), France Bundesministerium fur Bildung und Forschung (BMBF) Bundesministerium fur Bildung und Forschung (BMBF) Deutsche Forschungsgemeinschaft (DFG) Deutsche Forschungsgemeinschaft (DFG) Finanzministerium Baden-Wurttemberg Finanzministerium BadenWurttemberg HelmholtzGemeinschaft Deutscher Forschungszentren (HGF) Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF) Ministerium fur Wissenschaft und Forschung Ministerium fur Wissenschaft und Forschung NordrheinWestfalen Nordrhein-Westfalen Ministerium fur Wissenschaft Ministerium fur Wissenschaft Forschung und Kunst, Baden-Wurttemberg, Germany Forschung und Kunst, BadenWurttemberg, Germany Istituto Nazionale di Fisica Nucleare (INFN) Istituto Nazionale di Fisica Nucleare (INFN) Ministero dellIstruzione Ministero dell'Istruzione dellUniversita e della Ricerca (MIUR), Italy dell'Universita e della Ricerca (MIUR), Italy Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico Consejo Nacional de Ciencia y Tecnologia (CONACYT), Mexico Ministerie van Onderwijs, Cultuur en Wetenschap Ministerie van Onderwijs, Cultuur en Wetenschap Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO) Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands Stichting voor Fundamenteel Onderzoek der Materie (FOM), Netherlands Ministry of Science and Higher Education, Poland Ministry of Science and Higher Education, Poland [N N202 200239, N N202 207238] Fundacao para a Ciencia e a Tecnologia, Portugal Fundacao para a Ciencia e a Tecnologia, Portugal Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia Ministry for Higher Education, Science, and Technology, Slovenian Research Agency, Slovenia Comunidad de Madrid, Consejeri a de Educacion de la Comunidad de Castilla La Mancha Comunidad de Madrid, Consejeri a de Educacion de la Comunidad de Castilla La Mancha FEDER funds FEDER funds Ministerio de Ciencia e Innovacion and Consolider-Ingenio (CPAN) Ministerio de Ciencia e Innovacion and ConsoliderIngenio (CPAN) Xunta de Galicia, Spain Xunta de Galicia, Spain Science and Technology Facilities Council, United Kingdom Science and Technology Facilities Council, United Kingdom Department of Energy [DE-AC02-07CH11359, DE-FR02-04ER41300] Department of Energy National Science Foundation National Science Foundation [0450696] Grainger Foundation USA Grainger Foundation, USA ALFAEC/HELEN ALFA-EC/HELEN European Union 6th Framework Program European Union 6th Framework Program [MEIF-CT-2005-025057] European Union 7th Framework Program [PIEF-GA-2008-220240] European Union 7th Framework Program UNESCO UNESCO |
Identificador |
PHYSICAL REVIEW LETTERS, COLLEGE PK, v. 109, p. 150-159, AUG 10, 2012 0031-9007 http://www.producao.usp.br/handle/BDPI/42908 10.1103/PhysRevLett.109.062002 |
Idioma(s) |
eng |
Publicador |
AMER PHYSICAL SOC COLLEGE PK |
Relação |
PHYSICAL REVIEW LETTERS |
Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
Palavras-Chave | #SHOWER DETECTOR #HIGH-ENERGIES #HADRON FLUX #FLUCTUATIONS #SCATTERING #COLLISIONS #DIFFRACTION #COLLIDER #MODEL #PHYSICS, MULTIDISCIPLINARY |
Tipo |
article original article publishedVersion |