Journal
PHYSICAL REVIEW C
Volume 88, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.88.044910
Keywords
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Funding
- State Committee of Science
- World Federation of Scientists (WFS)
- Swiss Fonds Kidagan, Armenia
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
- Financiadora de Estudos e Projetos (FINEP)
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
- National Natural Science Foundation of China (NSFC)
- Chinese Ministry of Education (CMOE)
- Ministry of Science and Technology of China (MSTC)
- Ministry of Education and Youth of the Czech Republic
- Danish Natural Science Research Council
- Carlsberg Foundation
- Danish National Research Foundation
- European Research Council under the European Community
- Helsinki Institute of Physics
- Academy of Finland
- French CNRS-IN2P3
- Region Pays de Loire
- Region Alsace
- Region Auvergne
- CEA, France
- German BMBF
- Helmholtz Association
- General Secretariat for Research and Technology, Ministry of Development, Greece
- Hungarian OTKA
- National Office for Research and Technology (NKTH)
- Department of Atomic Energy
- Department of Science and Technology of the Government of India
- Istituto Nazionale di Fisica Nucleare (INFN)
- Centro Fermi-Museo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi, Italy
- MEXT, Japan
- Joint Institute for Nuclear Research, Dubna
- National Research Foundation of Korea (NRF)
- CONACYT
- DGAPA, Mexico
- ALFA-EC
- HELEN Program (High-Energy physics Latin-American-European Network)
- Stichting voor Fundamenteel Onderzoek der Materie (FOM)
- Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO), Netherlands
- Research Council of Norway (NFR)
- Polish Ministry of Science and Higher Education
- National Authority for Scientific Research (NASR) (Autoritatea Nationala pentru Cercetare Stiintifica, ANCS)
- Ministry of Education and Science of Russian Federation
- International Science and Technology Center
- Russian Academy of Sciences
- Russian Federal Agency of Atomic Energy
- Russian Federal Agency for Science and Innovations
- CERN-INTAS
- Ministry of Education of Slovakia
- Department of Science and Technology, South Africa
- CIEMAT
- EELA
- Ministerio de Educacion y Ciencia of Spain
- Xunta de Galicia (Conselleria de Educacion)
- CEADEN
- Cubaenergia (Cuba)
- IAEA (International Atomic Energy Agency)
- Swedish Research Council (VR)
- Knut & Alice Wallenberg Foundation (KAW)
- Ukraine Ministry of Education and Science
- United Kingdom Science and Technology Facilities Council (STFC)
- United States Department of Energy
- United States National Science Foundation
- State of Texas
- State of Ohio
- STFC [ST/J000140/1, ST/G008833/1, ST/J000094/1, ST/I003398/1, ST/J000108/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/I003398/1, ST/J000140/1, ST/G008833/1, ST/J000108/1, ST/J000094/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [0968903] Funding Source: National Science Foundation
- Division Of Physics
- Direct For Mathematical & Physical Scien [1307461, 0969966, 1305280] Funding Source: National Science Foundation
- Grants-in-Aid for Scientific Research [23340074, 23244055, 25287048] Funding Source: KAKEN
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In this paper measurements are presented of pi(+/-), K-+/-, p, and (p) over bar production at midrapidity (vertical bar y vertical bar < 0.5), in Pb-Pb collisions at root s(NN) = 2.76 TeV as a function of centrality. The measurement covers the transverse-momentum (p(T)) range from 100, 200, and 300 MeV/c up to 3, 3, and 4.6 GeV/c for pi, K, and p, respectively. The measured p(T) distributions and yields are compared to expectations based on hydrodynamic, thermal and recombination models. The spectral shapes of central collisions show a stronger radial flow than measured at lower energies, which can be described in hydrodynamic models. In peripheral collisions, the p(T) distributions are not well reproduced by hydrodynamic models. Ratios of integrated particle yields are found to be nearly independent of centrality. The yield of protons normalized to pions is a factor similar to 1.5 lower than the expectation from thermal models.
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