期刊论文

Aamodt, K.

英文

PHYSICAL REVIEW LETTERS

0031-9007

2011

106

3

032301

10.1103/PhysRevLett.106.032301

Calouste Gulbenkian Foundation from Lisbon; Swiss Fonds Kidagan, Armenia; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)National Council for Scientific and Technological Development (CNPq); Financiadora de Estudos e Projetos (FINEP)Ciencia Tecnologia e Inovacao (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)Ministry of Education, China; Ministry of Science and Technology of China (MSTC)Ministry of Science and Technology, China; Ministry of Education and Youth of the Czech RepublicMinistry of Education, Youth & Sports - Czech Republic; Danish Natural Science Research CouncilDanish Natural Science Research Council; Carlsberg FoundationCarlsberg Foundation; Danish National Research FoundationDanmarks Grundforskningsfond; European Research Council under the European CommunityEuropean Research Council (ERC); Helsinki Institute of Physics; Academy of FinlandAcademy of FinlandEuropean Commission; French CNRSCentre National de la Recherche Scientifique (CNRS); IN2P3; Region Pays de LoireRegion Pays de la Loire; Region AlsaceRegion Grand-Est; Region AuvergneRegion Auvergne-Rhone-Alpes; CEA, FranceFrench Atomic Energy Commission; German BMBFFederal Ministry of Education & Research (BMBF); Helmholtz AssociationHelmholtz Association; Greek Ministry of Research and Technology; Hungarian OTKAOrszagos Tudomanyos Kutatasi Alapprogramok (OTKA); National Office for Research and Technology (NKTH)National Office for Research and Technology; Department of Atomic EnergyDepartment of Atomic Energy (DAE); Department of Science and Technology of the Government of IndiaDepartment of Science & Technology (India); Istituto Nazionale di Fisica Nucleare (INFN) of ItalyIstituto Nazionale di Fisica Nucleare (INFN); MEXT, JapanMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Joint Institute for Nuclear Research, Dubna; National Research Foundation of Korea (NRF)National Research Foundation of Korea; CONACYTConsejo Nacional de Ciencia y Tecnologia (CONACyT); DGAPA, Mexico; ALFA-EC; HELEN Program (High-Energy physics Latin-American-European Network); Stichting voor Fundamenteel Onderzoek der Materie (FOM)FOM (The Netherlands); Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), NetherlandsNetherlands Organization for Scientific Research (NWO)Netherlands Government; Research Council of Norway (NFR)Research Council of Norway; Polish Ministry of Science and Higher EducationMinistry of Science and Higher Education, Poland; 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 FederationMinistry of Education and Science, Russian Federation; International Science and Technology Center; Russian Academy of SciencesRussian Academy of Sciences; Russian Federal Agency of Atomic Energy; Russian Federal Agency for Science and InnovationsFederal Agency for Science & Innovations (FASI); CERN-INTAS; Ministry of Education of Slovakia; CIEMAT; EELA; Ministerio de Educacion y Ciencia of SpainSpanish GovernmentEuropean Commission; Xunta de Galicia (Conselleria de Educacion)Xunta de Galicia; CEADENFrench Atomic Energy CommissionCEADEN; Cubaenergia, Cuba; IAEA (International Atomic Energy Agency)International Atomic Energy Agency; Ministry of Science and Technology and the National Research Foundation (NRF), South Africa; Knut AMP; Alice Wallenberg Foundation (KAW); Ukraine Ministry of Education and Science; United States National Science FoundationNational Science Foundation (NSF); State of Texas; State of Ohio; Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [ST/F011989/1] Funding Source: researchfish; Division Of PhysicsNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS) [0969966] Funding Source: National Science Foundation; Grants-in-Aid for Scientific ResearchMinistry of Education, Culture, Sports, Science and Technology, Japan (MEXT)Japan Society for the Promotion of ScienceGrants-in-Aid for Scientific Research (KAKENHI) [23340074, 23244055, 22244022] Funding Source: KAKEN

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The centrality dependence of the charged-particle multiplicity density at midrapidity in Pb-Pb collisions at √sNN=2.76TeV is presented. The charged-particle density normalized per participating nucleon pair increases by about a factor of 2 from peripheral (70%-80%) to central (0%-5%) collisions. The centrality dependence is found to be similar to that observed at lower collision energies. The data are compared with models based on different mechanisms for particle productio...