Centrality dependence of π , K , and p production in Pb-Pb collisions at s N N = 2.76 TeV
Lawrence Livermore National Laboratory · Czech Technical University in Prague · +128 more institutions
Abstract
In this paper measurements are presented of ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}$, ${K}^{\ifmmode\pm\else\textpm\fi{}}$, $p$, and $\overline{p}$ production at midrapidity ($|y|<0.5$), in Pb-Pb collisions at $\sqrt{{s}_{NN}}=2.76$ 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 $\ensuremath{\pi}$, $K$, 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…
Citation impact
- FWCI
- 79.78
- Percentile
- 100%
- References
- 62
Authors
973Topics & keywords
- Physics
- Centrality
- Pion
- Particle physics
- Rapidity
- Production (economics)
- Nuclear physics
- Function (biology)
Funding
- NSNational Science Foundation
- UDU.S. Department of Energy
- CCERN
- NRNational Research Foundation
- MOMinistry of Education, Culture, Sports, Science and Technology
- SVStichting voor Fundamenteel Onderzoek der Materie
- DGDanmarks Grundforskningsfond
- ISInternational Science and Technology Center
- FDFundação de Amparo à Pesquisa do Estado de São Paulo
- NNNational Natural Science Foundation of ChinaAward: IN2P3
- AOAcademy of Finland
- BFBundesministerium für Bildung und Forschung
- CNConsejo Nacional de Ciencia y Tecnología
- NONederlandse Organisatie voor Wetenschappelijk Onderzoek
- GSGeneral Secretariat for Research and Technology
- HSHungarian Scientific Research Fund
- CNConselho Nacional de Desenvolvimento Científico e Tecnológico
- NRNational Research Foundation of Korea
- JIJoint Institute for Nuclear Research
- NKNemzeti Kutatási és Technológiai Hivatal
- VVetenskapsrådet
- IAInternational Atomic Energy Agency
- CNCentre National de la Recherche ScientifiqueAward: CNRS-IN2P3
- FDFinanciadora de Estudos e Projetos
- NFNorges Forskningsråd
- ANAutoritatea Natională pentru Cercetare Stiintifică
- SCState Committee of Science
- SAScience and Technology Center in Ukraine
- XDXunta de Galicia
- FAFederal Agency of Atomic Energy of the Russian Federation
- INIstituto Nazionale di Fisica Nucleare
- MSMuseo Storico della Fisica e Centro Studi e Ricerche Enrico Fermi
- CDCentro de Aplicaciones Tecnológicas y Desarrollo Nuclear
- SAScience and Technology Facilities CouncilAwards: ST/G008833/1, ST/J000140/1, IN2P3, ST/J000094/1, ST/I003398/1
- RARussian Academy of Sciences
- DGDirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México
- CDCentro de Investigaciones Energéticas, Medioambientales y Tecnológicas
- INInstitut National de Physique Nucléaire et de Physique des Particules