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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24574
Title: 
Observation and studies of jet quenching in PbPb collisions at root s(NN)=2.76 TeV
Author(s): 
Institution: 
  • Yerevan Phys Inst
  • Inst Hochenergiephys OeAW
  • Natl Ctr Particle & High Energy Phys
  • Univ Antwerp
  • Vrije Univ Brussel
  • Univ Libre Brussels
  • Univ Ghent
  • Catholic Univ Louvain
  • Univ Mons
  • Centro Brasileiro de Pesquisas Físicas (CBPF)
  • Univ Estado Rio de Janeiro
  • Univ Catania
  • INFN Sez Firenze
  • Univ Florence
  • INFN Lab Nazl Frascati
  • INFN Sez Genova
  • INFN Sez Milano Biccoca
  • Univ Milano Bicocca
  • INFN Sez Napoli
  • Univ Naples Federico II
  • Inst High Energy Phys
  • Suez Canal Univ
  • INFN Sez Padova
  • Univ Padua
  • Univ Trent
  • INFN Sez Pavia
  • Univ Pavia
  • INFN Sez Perugia
  • Univ Perugia
  • INFN Sez Pisa
  • Univ Pisa
  • Scuola Normale Super Pisa
  • British Univ
  • University of Belgrade
  • INFN Sez Roma
  • Univ Roma La Sapienza
  • INFN Sez Torino
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • INFN Sez Trieste
  • Univ Trieste
  • Kangwon Natl Univ
  • Kyungpook Natl Univ
  • Fayoum Univ
  • Chonnam Natl Univ
  • Universidade Estadual Paulista (UNESP)
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • Vilnius Univ
  • Ctr Invest Estudios Avanzados IPN
  • Univ Iberoamer
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma San Luis Potosi
  • Soltan Inst Nucl Studies
  • Univ Auckland
  • Univ Canterbury
  • Quaid I Azam Univ
  • Univ Warsaw
  • Ctr Invest Energet Medioambien & Tecnol CIEMAT
  • Univ Autonoma Madrid
  • Univ Oviedo
  • Univ Cantabria
  • CERN
  • MIT
  • Paul Scherrer Inst
  • ETH
  • Univ Zurich
  • Natl Cent Univ
  • Bulgarian Acad Sci
  • NTU
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Kharkov Phys & Technol Inst
  • Univ Haute Alsace
  • Univ Bristol
  • Rutherford Appleton Lab
  • Univ London Imperial Coll Sci Technol & Med
  • Brunel Univ
  • Baylor Univ
  • Univ Sofia
  • Boston University
  • Brown University
  • Univ Calif Davis
  • Univ Calif Los Angeles
  • Brandenburg Tech Univ Cottbus
  • University of California, Riverside (UCR)
  • Univ Calif San Diego
  • Univ Calif Santa Barbara
  • CALTECH
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Moscow MV Lomonosov State Univ
  • Univ Florida
  • Florida Int Univ
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois
  • Univ Iowa
  • Johns Hopkins Univ
  • Peking Univ
  • University of Kansas (KU)
  • Kansas State University
  • Inst Nucl Res ATOMKI
  • Lawrence Livermore Natl Lab
  • University of Maryland
  • Univ Minnesota
  • University of Mississippi
  • Univ Nebraska
  • SUNY Buffalo
  • Northeastern University
  • Universidad de los Andes
  • Northwestern University (NU)
  • Rudjer Boskovic Inst
  • Univ Notre Dame
  • Ohio State Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • Rockefeller Univ
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  • Rutgers State Univ
  • Univ Tennessee
  • Texas A&M Univ
  • Texas Tech Univ
  • Vanderbilt Univ
  • University of Virginia (UVA)
  • Wayne State Univ
  • Univ Wisconsin
  • Universidade Federal do ABC (UFABC)
  • Eotvos Lorand Univ
  • Univ Split
  • CNRS
  • Tata Inst Fundamental Res HECR
  • Visva Bharati Univ
  • Univ Basilicata
  • Ist Nazl Fis Nucl
  • Univ Siena
  • Lab Instrumentacao & Fis Expt Particulas
  • Univ Cyprus
  • Univ Geneva
  • Univ Athens
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Joint Inst Nucl Res
  • Mersin Univ
  • Charles Univ Prague
  • Adiyaman Univ
  • Izmir Inst Technol
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Univ Southampton
  • Petersburg Nucl Phys Inst
  • Utah Valley Univ
  • Egyptian Network High Energy Phys
  • Russian Acad Sci
  • Los Alamos Natl Lab
  • NICPB
  • Univ Helsinki
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • CEA Saclay
  • Univ Strasbourg
  • Ctr Calcul Inst Natl Phys Nucl & Phys Particules
  • Univ Lyon 1
  • Georgian Acad Sci
  • Tbilisi State Univ
  • RWTH Aachen University
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Ioannina
  • KFKI Res Inst Particle & Nucl Phys
  • Univ Debrecen
  • Panjab Univ
  • University of Delhi
  • Bhabha Atom Res Ctr
  • Tata Inst Fundamental Res EHEP
  • Inst Res & Fundamental Sci IPM
  • INFN Sez Bari
  • Univ Bari
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • PN Lebedev Phys Inst
  • INFN Sez Catania
ISSN: 
0556-2813
Sponsorship: 
  • Austrian Federal Ministry of Science and Research
  • Belgium Fonds de la Recherche Scientifique
  • Fonds voor Wetenschappelijk Onderzoek
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
  • Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)
  • Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
  • Bulgarian Ministry of Education and Science
  • Organisation Européenne pour la Recherche Nucléaire (CERN)
  • Chinese Academy of Sciences (CAS)
  • Ministry of Science and Technology
  • National Natural Science Foundation of China (NSFC)
  • Colombian Funding Agency (COLCIENCIAS)
  • Croatian Ministry of Science, Education and Sport
  • Research Promotion Foundation (RPF)
  • Estonian Academy of Sciences and NICPB
  • Academy of Finland
  • Finnish Ministry of Education
  • Helsinki Institute of Physics (HIP)
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • Helmholtz-Gemeinschaft Deutscher Forschungszentren, Germany
  • General Secretariat for Research and Technology (GSRT)
  • National Scientific Research Foundation
  • National Office for Research and Technology, Hungary
  • Department of Atomic Energy
  • Department of Science and Technology (DST) - India
  • Institute for Studies in Theoretical Physics and Mathematics, Iran
  • Science Foundation Ireland (SFI)
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • Korean Ministry of Education, Science and Technology
  • National Research Foundation of Korea (NRF)
  • Lithuanian Academy of Sciences
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • SEP
  • UASLP-FAI
  • Pakistan Atomic Energy Commission (PAEC)
  • State Commission for Scientific Research, Poland
  • Fundação para a Ciência e a Tecnologia (FCT)
  • Joint Institute for Nuclear Research (JINR)
  • Ministry of Science and Technologies of the Russian Federation
  • Russian Ministry of Atomic Energy
  • Ministry of Science and Technological Development of Serbia
  • Ministerio de Ciência e Innovacion
  • Programa Consolider-Ingenio, Spain
  • ETH Board
  • ETH Zurich
  • PSI
  • SNF
  • UniZH
  • Canton Zurich
  • SER
  • National Science Council, Taipei
  • Scientific and Technical Research Council of Turkey
  • Turkish Atomic Energy Authority
  • Science and Technology Facilities Council (STFC)
  • US Department of Energ
  • US National Science Foundation
  • Marie-Curie programme
  • European Research Council (European Union)
  • Leventis Foundation
  • A.P. Sloan Foundation
  • Alexander von Humboldt Foundation
  • Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy)
  • Belgian Federal Science Policy Office
  • Fonds pour la Formation a la Recherche dans l'Industrie et dans l'Agriculture (FRIA-Belgium)
  • Agentschap voor Innovatie door Wetenschap en Technologie (IWT)
Abstract: 
Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity of 6.7 mu b(-1). Jets are reconstructed using the energy deposited in the CMS calorimeters and studied as a function of collision centrality. With increasing collision centrality, a striking imbalance in dijet transverse momentum is observed, consistent with jet quenching. The observed effect extends from the lower cutoff used in this study (jet p(T) = 120 GeV/c) up to the statistical limit of the available data sample (jet p(T) approximate to 210 GeV/c). Correlations of charged particle tracks with jets indicate that the momentum imbalance is accompanied by a softening of the fragmentation pattern of the second most energetic, away-side jet. The dijet momentum balance is recovered when integrating low transverse momentum particles distributed over a wide angular range relative to the direction of the away-side jet.
Issue Date: 
12-Aug-2011
Citation: 
Physical Review C. College Pk: Amer Physical Soc, v. 84, n. 2, p. 26, 2011.
Time Duration: 
26
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevC.84.024906
URI: 
http://hdl.handle.net/11449/24574
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24574
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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