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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/24669
Title: 
Observation of Sequential upsilon Suppression in PbPb Collisions
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
  • Joint Inst Nucl Res
  • University of Belgrade
  • Charles Univ Prague
  • Univ Calif Los Angeles
  • Scuola Normale Sez INFN
  • Univ Roma La Sapienza
  • Univ Athens
  • Rutherford Appleton Lab
  • University of Kansas (KU)
  • Inst Res Fundamental Sci IPM
  • Univ Sofia
  • Paul Scherrer Inst
  • Institute for Theoretical and Experimental Physics (ITEP)
  • Petersburg Nucl Phys Inst
  • Gaziosmanpasa Univ
  • Adiyaman Univ
  • Acad Sci Res & Technol Arab Republ Egypt
  • Izmir Inst Technol
  • Univ Iowa
  • Mersin Univ
  • Ozyegin Univ
  • Baylor Univ
  • State Res Ctr Russian Federat
  • Kafkas Univ
  • Suleyman Demirel Univ
  • Ege Univ
  • Russian Acad Sci
  • Univ Southampton
  • Univ Perugia
  • Univ Sydney
  • NICPB
  • Utah Valley Univ
  • Univ Alabama
  • Vinca Inst Nucl Sci
  • Argonne Natl Lab
  • Erzincan Univ
  • KFKI Res Inst Particle & Nucl Phys
  • Kyungpook Natl Univ
  • Univ Helsinki
  • Boston University
  • Helsinki Inst Phys
  • Lappeenranta Univ Technol
  • INFN Sez Bari
  • CEA Saclay
  • Ecole Polytech
  • Univ Haute Alsace Mulhouse
  • CNRS IN2P3
  • Univ Lyon 1
  • Moscow MV Lomonosov State Univ
  • Tbilisi State Univ
  • Brown University
  • RWTH Aachen University
  • Univ Bari
  • DESY
  • Univ Hamburg
  • Univ Karlsruhe
  • Inst Nucl Phys Demokritos
  • Univ Ioannina
  • Univ Calif Davis
  • PN Lebedev Phys Inst
  • Politecn Bari
  • INFN Sez Bologna
  • Univ Bologna
  • INFN Sez Catania
  • Univ Catania
  • INFN Sez Firenze
  • Univ Florence
  • INFN Lab Nazl Frascati
  • Universidade Federal do ABC (UFABC)
  • INFN Sez Genova
  • Univ Genoa
  • INFN Sez Milano Bicocca
  • Univ Milano Bicocca
  • INFN Sez Napoli
  • Univ Naples Federico II
  • INFN Sez Padova
  • Univ Padua
  • University of California, Riverside (UCR)
  • Univ Trento Trento
  • CALTECH
  • INFN Sez Pavia
  • Universidade Estadual Paulista (UNESP)
  • Univ Pavia
  • INFN Sez Perugia
  • INFN Sez Pisa
  • Univ Pisa
  • Scuola Normale Super Pisa
  • Univ Calif San Diego
  • INFN Sez Roma
  • CERN
  • INFN Sez Torino
  • Univ Turin
  • Univ Piemonte Orientale Novara
  • INFN Sez Trieste
  • Univ Trieste
  • Kangwon Natl Univ
  • Fayoum Univ
  • Chonnam Natl Univ
  • Korea University
  • Univ Seoul
  • Sungkyunkwan Univ
  • Vilnius State Univ
  • Ctr Invest Energet Medioambientales & Tecnol CIEM
  • Ctr Invest & Estudios Avanzados IPN
  • Univ Iberoamer
  • Inst Nucl Res ATOMKI
  • Benemerita Univ Autonoma Puebla
  • Univ Autonoma San Luis Potosi
  • Univ Auckland
  • Univ Canterbury
  • Suez Canal Univ
  • Quaid I Azam Univ
  • Natl Ctr Nucl Res
  • Univ Autonoma Madrid
  • Univ Oviedo
  • CSIC Univ Cantabria
  • Univ Calif Santa Barbara
  • ETH
  • Univ Zurich
  • Natl Cent Univ
  • Zewail City Sci & Technol
  • Bulgarian Acad Sci
  • Natl Taiwan Univ
  • Cukurova Univ
  • Middle E Tech Univ
  • Bogazici Univ
  • Istanbul Tech Univ
  • Natl Sci Ctr
  • Univ Bristol
  • Univ London Imperial Coll Sci Technol & Med
  • Cairo Univ
  • Brunel Univ
  • Inst High Energy Phys
  • Carnegie Mellon Univ
  • Univ Colorado
  • Cornell Univ
  • Fairfield Univ
  • Fermilab Natl Accelerator Lab
  • Univ Florida
  • Florida Int Univ
  • Debrecen Univ Med
  • Rudjer Boskovic Inst
  • Florida State University
  • Florida Inst Technol
  • Univ Illinois
  • Peking Univ
  • Johns Hopkins Univ
  • Kansas State University
  • Lawrence Livermore Natl Lab
  • Panjab Univ
  • University of Maryland
  • Univ Warsaw
  • MIT
  • Univ Minnesota
  • University of Mississippi
  • Univ Nebraska
  • Universidad de los Andes
  • SUNY Buffalo
  • Northeastern University
  • Northwestern University (NU)
  • University of Delhi
  • Univ Notre Dame
  • Ohio State Univ
  • British Univ
  • Princeton University
  • Univ Puerto Rico
  • Purdue Univ
  • Purdue University Calumet
  • Rice University
  • Tech Univ Split
  • University of Rochester
  • Saha Inst Nucl Phys
  • Rockefeller Univ
  • Rutgers State Univ
  • Univ Tennessee
  • Ain Shams Univ
  • Texas A&M Univ
  • Texas Tech Univ
  • Vanderbilt Univ
  • University of Virginia (UVA)
  • Wayne State Univ
  • Univ Wisconsin
  • Bhabha Atom Res Ctr
  • Univ Split
  • Vienna Univ Technol
  • Univ Haute Alsace
  • Brandenburg Tech Univ Cottbus
  • Eotvos Lorand Univ
  • Tata Inst Fundamental Res HECR
  • Visva Bharati Univ
  • Tata Inst Fundamental Res EHEP
  • Lab Instrumentacao & Fis Expt Particulas
  • Univ Cyprus
  • Sharif Univ Technol
  • Isfahan Univ Technol
  • Islamic Azad Univ
  • Univ Rome
  • Univ Basilicata
  • Univ Guglielmo Marconi
  • Lab Nazl Legnaro INFN
  • Univ Siena
  • Univ Bucharest
ISSN: 
0031-9007
Sponsorship: 
  • BMWF
  • FWF (Austria)
  • Fonds de la Recherche Scientifique (FNRS)
  • FWO (Belgium)
  • 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)
  • MES (Bulgaria)
  • Organisation Européenne pour la Recherche Nucléaire (CERN)
  • CAS
  • MoST
  • National Natural Science Foundation of China (NSFC)
  • COLCIENCIAS (Colombia)
  • MSES (Croatia)
  • Research Promotion Foundation (RPF)
  • MEYS (Czech Republic)
  • MoER
  • European Regional Development Fund (ERDF)
  • Academy of Finland
  • MEC
  • Helsinki Institute of Physics (HIP)
  • CEA
  • Institut national de physique nucléaire et de physique des particules (IN2P3/CNRS)
  • Bundesministerium für Bildung und Forschung (BMBF)
  • Deutsche Forschungsgemeinschaft (DFG)
  • HGF (Germany)
  • General Secretariat for Research and Technology (GSRT)
  • OTKA
  • NKTH (Hungary)
  • DAE
  • Department of Science and Technology (DST) - India
  • Institute for Research in Fundamental Sciences (IPM)
  • Science Foundation Ireland (SFI)
  • Istituto Nazionale di Fisica Nucleare (INFN)
  • NRF
  • WCU (Korea)
  • LAS (Lithuania)
  • Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV)
  • Consejo Nacional de Ciencia y Tecnología (CONACYT)
  • SEP
  • UASLP-FAI (Mexico)
  • MSI (New Zealand)
  • Pakistan Atomic Energy Commission (PAEC)
  • MSHE
  • NSC (Poland)
  • Fundação para a Ciência e a Tecnologia (FCT)
  • Joint Institute for Nuclear Research (JINR)
  • MON
  • Rosatom State Atomic Energy Corporation (ROSATOM)
  • RAS
  • Agencies (Switzerland)
  • NSC (Taipei)
  • Scientific and Technological Research Council of Turkey (TUBITAK)
  • Türkiye Atom Enerjisi Kurumu (TAEK)
  • NASU (Ukraine)
  • Science and Technology Facilities Council (STFC)
  • Department of Energy (DOE)
  • National Science Foundation (NSF) - USA
Sponsorship Process Number: 
SF0690030s09
Abstract: 
The suppression of the individual gamma (nS) states in PbPb collisions with respect to their yields in pp data has been measured. The PbPb and pp data sets used in the analysis correspond to integrated luminosities of 150 mu b(-1) and 230 nb(-1), respectively, collected in 2011 by the CMS experiment at the LHC, at a center-of-mass energy per nucleon pair of 2.76 TeV. The gamma (nS) yields are measured from the dimuon invariant mass spectra. The suppression of the gamma (nS) yields in PbPb relative to the yields in pp, scaled by the number of nucleon-nucleon collisions, R-AA, is measured as a function of the collision centrality. Integrated over centrality, the R-AA values are 0.56 +/- 0.08(stat) +/- 0.07(syst), 0.12 +/- 0.04(stat) +/- 0.02(syst), and lower than 0.10 (at 95% confidence level), for the gamma (1S), gamma (2S), and gamma (3S) states, respectively. The results demonstrate the sequential suppression of the gamma (nS) states in PbPb collisions at LHC energies.
Issue Date: 
26-Nov-2012
Citation: 
Physical Review Letters. College Pk: Amer Physical Soc, v. 109, n. 22, p. 15, 2012.
Time Duration: 
15
Publisher: 
Amer Physical Soc
Source: 
http://dx.doi.org/10.1103/PhysRevLett.109.222301
URI: 
http://hdl.handle.net/11449/24669
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/24669
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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