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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/74409
Title: 
Measurement of the azimuthal anisotropy of neutral pions in Pb-Pb collisions at √sNN=2.76 TeV
Author(s): 
Institution: 
  • Yerevan Physics Institute
  • Institut für Hochenergiephysik der OeAW
  • National Centre for Particle and High Energy Physics
  • Universiteit Antwerpen
  • Vrije Universiteit Brussel
  • Université Libre de Bruxelles
  • Ghent University
  • Université Catholique de Louvain
  • Université de Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Universidade do Estado do Rio de Janeiro (UERJ)
  • Universidade Estadual Paulista (UNESP)
  • Institute for Nuclear Research and Nuclear Energy
  • University of Sofia
  • Institute of High Energy Physics
  • Peking University
  • Universidad de los Andes
  • Technical University of Split
  • University of Split
  • Institute Rudjer Boskovic
  • University of Cyprus
  • Charles University
  • Egyptian Network of High Energy Physics
  • National Institute of Chemical Physics and Biophysics
  • University of Helsinki
  • Helsinki Institute of Physics
  • Lappeenranta University of Technology
  • CEA/Saclay
  • IN2P3-CNRS
  • CNRS/IN2P3
  • Institut de Physique Nucléaire de Lyon
  • Tbilisi State University
  • I. Physikalisches Institut
  • III. Physikalisches Institut A
  • III. Physikalisches Institut B
  • Deutsches Elektronen-Synchrotron
  • University of Hamburg
  • Institut für Experimentelle Kernphysik
  • Institute of Nuclear Physics
  • University of Athens
  • University of Ioánnina
  • KFKI Research Institute for Particle and Nuclear Physics
  • Institute of Nuclear Research ATOMKI
  • University of Debrecen
  • Panjab University
  • University of Delhi
  • Saha Institute of Nuclear Physics
  • Bhabha Atomic Research Centre
  • Tata Institute of Fundamental Research-EHEP
  • Tata Institute of Fundamental Research-HECR
  • Institute for Research in Fundamental Sciences (IPM)
  • INFN Sezione di Bari
  • Università di Bari
  • Politecnico di Bari
  • INFN Sezione di Bologna
  • Università di Bologna
  • INFN Sezione di Catania
  • Università di Catania
  • INFN Sezione di Firenze
  • Università di Firenze
  • INFN Laboratori Nazionali di Frascati
  • INFN Sezione di Genova
  • Università di Genova
  • INFN Sezione di Milano-Bicocca
  • Università di Milano-Bicocca
  • INFN Sezione di Napoli
  • Università di Napoli Federico II Napoli
  • INFN Sezione di Padova
  • Università di Padova
  • Università di Trento (Trento)
  • INFN Sezione di Pavia
  • Università di Pavia
  • INFN Sezione di Perugia
  • Università di Perugia
  • INFN Sezione di Pisa
  • Università di Pisa
  • Scuola Normale Superiore di Pisa
  • INFN Sezione di Roma
  • Università di Roma la Sapienza Roma
  • INFN Sezione di Torino
  • Università di Torino
  • Università Del Piemonte Orientale (Novara)
  • INFN Sezione di Trieste
  • Università di Trieste
  • Kangwon National University
  • Kyungpook National University
  • Institute for Universe and Elementary Particles
  • Korea University
  • University of Seoul
  • Sungkyunkwan University
  • Vilnius University
  • Centro de Investigacion y de Estudios Avanzados Del IPN
  • Universidad Iberoamericana
  • Benemerita Universidad Autonoma de Puebla
  • Universidad Autónoma de San Luis Potosí
  • University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • National Centre for Nuclear Research
  • University of Warsaw
  • Laboratório de Instrumentação e Física Experimental de Partículas (LIP)
  • Joint Institute for Nuclear Research
  • Petersburg Nuclear Physics Institute
  • Institute for Nuclear Research
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Moscow State University
  • P.N. Lebedev Physical Institute
  • Institute for High Energy Physics
  • Vinca Institute of Nuclear Sciences
  • Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT)
  • Universidad Autónoma de Madrid
  • Universidad de Oviedo
  • CSIC-Universidad de Cantabria
  • European Organization for Nuclear Research
  • Paul Scherrer Institut
  • ETH Zurich
  • Universität Zürich
  • National Central University
  • National Taiwan University (NTU)
  • Cukurova University
  • Physics Department
  • Bogazici University
  • Istanbul Technical University
  • Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • Imperial College
  • Brunel University
  • Baylor University
  • University of Alabama
  • Boston University
  • Brown University
  • University of California, Davis
  • University of California, Los Angeles
  • University of California, Riverside (UCR)
  • University of California, San Diego
  • University of California, Santa Barbara
  • California Institute of Technology
  • Carnegie Mellon University
  • University of Colorado at Boulder
  • Cornell University
  • Fairfield University
  • Fermi National Accelerator Laboratory
  • University of Florida
  • Florida International University
  • Florida State University
  • Florida Institute of Technology
  • University of Illinois at Chicago (UIC)
  • University of Iowa
  • Johns Hopkins University
  • University of Kansas (KU)
  • Kansas State University
  • Lawrence Livermore National Laboratory
  • University of Maryland
  • Massachusetts Institute of Technology (MIT)
  • University of Minnesota
  • University of Mississippi
  • University of Nebraska-Lincoln
  • State University of New York at Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • University of Notre Dame
  • Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • Rockefeller University
  • Rutgers, State University of New Jersey
  • University of Tennessee
  • Texas AandM University
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia (UVA)
  • Wayne State University
  • University of Wisconsin
ISSN: 
  • 0031-9007
  • 1079-7114
Abstract: 
First measurements of the azimuthal anisotropy of neutral pions produced in Pb-Pb collisions at a center-of-mass energy of √sNN=2.76 TeV are presented. The amplitudes of the second Fourier component (v2) of the π0 azimuthal distributions are extracted using an event-plane technique. The values of v2 are studied as a function of the neutral pion transverse momentum (pT) for different classes of collision centrality in the kinematic range 1.6<pT<8.0 GeV/c, within the pseudorapidity interval |η|<0.8. The CMS measurements of v 2(pT) are similar to previously reported π0 azimuthal anisotropy results from √sNN=200 GeV Au-Au collisions at RHIC, despite a factor of ∼14 increase in the center-of-mass energy. In the momentum range 2.5<pT<5.0 GeV/c, the neutral pion anisotropies are found to be smaller than those observed by CMS for inclusive charged particles. © 2013 CERN.
Issue Date: 
22-Jan-2013
Citation: 
Physical Review Letters, v. 110, n. 4, 2013.
Keywords: 
  • Azimuthal anisotropy
  • Azimuthal distributions
  • Center-of-mass energies
  • Fourier components
  • Kinematic range
  • Momentum range
  • Neutral pions
  • Pb-Pb collisions
  • Pseudorapidities
  • Transverse momenta
  • Anisotropy
  • Colliding beam accelerators
  • Hadrons
  • High energy physics
  • Tellurium compounds
  • Lead
Source: 
http://dx.doi.org/10.1103/PhysRevLett.110.042301
URI: 
Access Rights: 
Acesso restrito
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/74409
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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