Suppression of high transverse momentum D mesons in central Pb-Pb collisions at root s(NN)=2.76 TeV
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
10/10/2013
10/10/2013
25/09/2012
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Resumo |
The production of the prompt charm mesons D-0, D+, D*(+), and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the LHC, at a centre-of-mass energy root s(NN) = 2.76 TeV per nucleon-nucleon collision. The p(t)-differential production yields in the range 2 < p(t) < 16 GeV/c at central rapidity, vertical bar y vertical bar < 0.5, were used to calculate the nuclear modification factor R-AA with respect to a proton-proton reference obtained from the cross section measured at root s = 7 TeV and scaled to root s = 2.76 TeV. For the three meson species, R-AA shows a suppression by a factor 3-4, for transverse momenta larger than 5 GeV/c in the 20% most central collisions. The suppression is reduced for peripheral collisions. Calouste Gulbenkian Foundation from Lisbon and Swiss Fonds Kidagan, Armenia Calouste Gulbenkian Foundation from Lisbon and Swiss Fonds Kidagan, Armenia 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 Sao Paulo (FAPESP) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) National Natural Science Foundation of China (NSFC) National Natural Science Foundation of China (NSFC) Chinese Ministry of Education (CMOE) Chinese Ministry of Education (CMOE) Ministry of Science and Technology of China (MSTC) Ministry of Science and Technology of China (MSTC) Ministry of Education and Youth of the Czech Republic Ministry of Education and Youth of the Czech Republic Danish Natural Science Research Council Danish Natural Science Research Council Carlsberg Foundation Carlsberg Foundation Danish National Research Foundation Danish National Research Foundation European Research Council under the European Community European Research Council under the European Community Helsinki Institute of Physics Helsinki Institute of Physics Academy of Finland Academy of Finland French CNRS-IN2P3 French CNRSIN2P3 Region Pays de Loire Region Pays de Loire Region Alsace Region Alsace Region Auvergne Region Auvergne CEA, France CEA, France German BMBF German BMBF Helmholtz Association Helmholtz Association General Secretariat for Research and Technology, Ministry of Development, Greece General Secretariat for Research and Technology, Ministry of Development, Greece Hungarian OTKA Hungarian OTKA National Office for Research and Technology (NKTH) National Office for Research and Technology (NKTH) Department of Atomic Energy and Department of Science and Technology of the Government of India Department of Atomic Energy and Department of Science and Technology of the Government of India Istituto Nazionale di Fisica Nucleare (INFN) of Italy Istituto Nazionale di Fisica Nucleare (INFN) of Italy MEXT MEXT Joint Institute for Nuclear Research, Dubna Joint Institute for Nuclear Research, Dubna National Research Foundation of Korea (NRF) National Research Foundation of Korea (NRF) CONACYT CONACYT DGAPA, Mexico DGAPA, Mexico ALFAEC ALFA-EC HELEN Program (High-Energy physics Latin-American-European Network) HELEN Program (HighEnergy physics LatinAmericanEuropean Network) Stichting voor Fundamenteel Onderzoek der Materie (FOM) Stichting voor Fundamenteel Onderzoek der Materie (FOM) Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands Research Council of Norway (NFR) Research Council of Norway (NFR) Polish Ministry of Science and Higher Education Polish Ministry of Science and Higher Education National Authority for Scientific Research - NASR (Autoritatea Nationala pentru Cercetare Stiintifica - ANCS) National Authority for Scientific Research NASR (Autoritatea Nationala pentru Cercetare Stiintifica ANCS) Federal Agency of Science of the Ministry of Education and Science of Russian Federation Federal Agency of Science of the Ministry of Education and Science of Russian Federation International Science and Technology Center International Science and Technology Center Russian Academy of Sciences Russian Academy of Sciences Russian Federal Agency of Atomic Energy Russian Federal Agency of Atomic Energy Russian Federal Agency for Science and Innovations Russian Federal Agency for Science and Innovations CERN-INTAS CERNINTAS Ministry of Education of Slovakia Ministry of Education of Slovakia Department of Science and Technology, South Africa Department of Science and Technology, South Africa CIEMAT CIEMAT EELA EELA Ministerio de Educacion y Ciencia of Spain Ministerio de Educacion y Ciencia of Spain Xunta de Galicia (Conselleria de Educacion) Xunta de Galicia (Conselleria de Educacion) CEADEN CEADEN Cubaenergia, Cuba Cubaenergia, Cuba IAEA (International Atomic Energy Agency) IAEA (International Atomic Energy Agency) Swedish Research Council (VR) Swedish Research Council (VR) Knut & Alice Wallenberg Foundation (KAW) Knut & Alice Wallenberg Foundation (KAW) Ukraine Ministry of Education and Science Ukraine Ministry of Education and Science United Kingdom Science and Technology Facilities Council (STFC) United Kingdom Science and Technology Facilities Council (STFC) United States Department of Energy United States Department of Energy United States National Science Foundation United States National Science Foundation State of Texas State of Texas State of Ohio State of Ohio |
Identificador |
JOURNAL OF HIGH ENERGY PHYSICS, NEW YORK, v. 159, n. 9, pp. 130-135, SEP, 2012 1126-6708 http://www.producao.usp.br/handle/BDPI/34117 10.1007/JHEP09(2012)112 |
Idioma(s) |
eng |
Publicador |
SPRINGER NEW YORK |
Relação |
JOURNAL OF HIGH ENERGY PHYSICS |
Direitos |
openAccess Copyright SPRINGER |
Palavras-Chave | #HEAVY IONS #NUCLEUS-NUCLEUS COLLISIONS #RADIATIVE ENERGY-LOSS #QUARK-GLUON PLASMA #QCD MATTER #JET PRODUCTION #HEAVY #COLLABORATION #PERSPECTIVE #LHC #PP #PHYSICS, PARTICLES & FIELDS |
Tipo |
article original article publishedVersion |