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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/72735
Title: 
Long-range and short-range dihadron angular correlations in central PbPb collisions at psNN = 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)
  • 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
  • IN2P3-CNRS
  • CEA/Saclay
  • CNRS/IN2P3
  • Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
  • Institut de Physique Nucléaire de Lyon
  • Tbilisi State University
  • RWTH Aachen University
  • III. Physikalisches Institut A
  • III. Physikalisches Institut B
  • Deutsches Elektronen-Synchrotron
  • University of Hamburg
  • Institut für Experimentelle Kernphysik
  • Institute of Nuclear Physics Demokritos
  • 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
  • Bhabha Atomic Research Centre
  • Tata Institute of Fundamental Research - EHEP
  • Tata Institute of Fundamental Research - HECR
  • Institute for Research and Fundamental Sciences (IPM)
  • INFN Sezione di Bari
  • Universita di Bari
  • Politécnico di Bari
  • INFN Sezione di Bologna
  • Universita di Bologna
  • INFN Sezione di Catania
  • Universita di Catania
  • INFN Sezione di Firenze
  • Universita di Firenze
  • INFN Laboratori Nazionali di Frascati
  • INFN Sezione di Genova
  • INFN Sezione di Milano-Biccoca
  • Universita di Milano-Bicocca
  • INFN Sezione di Napoli
  • Universita di Napoli Federico II
  • INFN Sezione di Padova
  • Universita di Padova
  • Universita di Trento (Trento)
  • INFN Sezioné di Padova
  • Universitä di Padova
  • Universita di Trento
  • INFN Sezione di Pavia
  • Universita di Pavia
  • INFN Sezione di Perugia
  • Universita di Perugia
  • INFN Sezioné di Perugia
  • Universitä di Perugia
  • INFN Sezione di Pisa
  • Universita di Pisa
  • Scuola Normale Superiore di Pisa
  • INFN Sezione di Piså
  • Universitä di Pisa
  • Scuola Normale Superiore di Piså
  • INFN Sezione di Roma
  • Universita di Roma La Sapienza
  • INFN Sezione di Torino
  • Universita di Torino
  • Universita del Piemonte Orientale (Novara)
  • INFN Sezione di Trieste
  • Universita di Trieste
  • INFN Sezioné di Trieste
  • Universita di Triesté
  • 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
  • Benemérita Universidad Autonoma de Puebla
  • Universidad Autónoma de San Luis Potosí
  • University of Auckland
  • University of Canterbury
  • Quaid-I-Azam University
  • University of Warsaw
  • Soltan Institute for Nuclear Studies
  • 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
  • Faculty of Physics and 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
  • Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • Imperial College
  • Brunei University
  • Baylor 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, 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, Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • University of Notre Dame
  • Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University
  • Rice University
  • University of Rochester
  • Rockefeller University
  • Rutgers, the State University of New Jersey
  • University of Tennessee
  • Texas A and M University
  • Texas Tech University
  • Vanderbilt University
  • University of Virginia (UVA)
  • Wayne State University
  • University of Wisconsin
  • Boston University
ISSN: 
  • 1126-6708
  • 1029-8479
Abstract: 
First measurements of dihadron correlations for charged particles are presented for central PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76TeV over a broad range in relative pseudorapidity (Δν) and the full range of relative azimuthal angle (Δø). The data were collected with the CMS detector, at the LHC. A broadening of the away-side (Δø y≈ π) azimuthal correlation is observed at all Δν, as compared to the measurements in pp collisions. Furthermore, long-range dihadron correlations in Δν are observed for particles with similar ø values. This phenomenon, also known as the \ridge, persists up to at least jΔνj = 4. For particles with transverse momenta (pT) of 2-4 GeV/c, the ridge is found to be most prominent when these particles are correlated with particles of pT = 2-6 GeV/c, and to be much reduced when paired with particles of pT = 10-12 GeV/c. Copyright CERN.
Issue Date: 
5-Oct-2011
Citation: 
Journal of High Energy Physics, v. 2011, n. 7, 2011.
Keywords: 
Hadron-Hadron Scattering Op
Source: 
http://dx.doi.org/10.1007/JHEP07(2011)076
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/72735
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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