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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/72322
Title: 
Prompt and non-prompt J/ψ production in pp collisions at √s =7 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
  • E gyptian 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
  • Université de Haute Alsace Mulhouse, CNRS/IN2P3
  • Centre de Calcul de l'Institut National de Physique Nucleaire et de Physique des Particules (IN2P3)
  • Institut de Physique Nucléaire de Lyon
  • Academy of Science
  • I. Physikalisches Institut
  • III. Physikalisches Institut A
  • RWTH Aachen University
  • 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 Studies in Theoretical Physics and Mathematics (IPM)
  • INFN Sezione di Bari
  • INFN Sezione di Bologna
  • INFN Sezione di Catania
  • INFN Sezione di Firenze
  • INFN Laboratori Nazionali di Frascati
  • INFN Sezione di Genova
  • INFN Sezione di Milano-Biccoca
  • INFN Sezione di Napoli
  • INFN Sezione di Padova
  • INFN Sezione di Pavia
  • INFN Sezione di Perugiaa
  • INFN Sezione di Pisa
  • INFN Sezione di Roma
  • INFN Sezione di Torino
  • INFN Sezione 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
  • Institute of Experimental Physics
  • 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
  • Middle East Technical University, Physics Department
  • Bogaziçi University
  • Kharkov Institute of Physics and Technology
  • University of Bristol
  • Rutherford Appleton Laboratory
  • Imperial College
  • Brunel University
  • Baylor University
  • Boston University
  • Brown University
  • University of California, Davis
  • University of California, Los Angeles
  • University of California, Riverside (UCR)
  • University of California
  • 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)
  • The 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
  • The Ohio State University
  • Princeton University
  • University of Puerto Rico
  • Purdue University
  • Purdue University Calumet
  • Rice University
  • University of Rochester
  • The 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
  • Universidade Federal do ABC (UFABC)
  • Suez Canal University
  • Fayoum University
  • Université de Haute-Alsace
  • Brandenburg University of Technology
  • Eötvös Loránd University
  • University of Visva-Bharati
  • Facolta' Ingegneria Università di Roma La Sapienza
  • Università della Basilicata
  • Laboratori Nazionali di Legnaro dell'INFN
  • University of Belgrade
  • Université de Genève
  • Scuola Normale e Sezione dell' INFN
  • Adiyaman University
  • Mersin University
  • Izmir Institute of Technology
  • Kafkas University
  • Suleyman Demirel University
  • Ege University
  • Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH)
  • Istanbul Technical University
  • Università di Bari
  • Politecnico di Bari
  • Università di Bologna
  • Università di Catania
  • Università di Firenze
  • Università di Milano-Bicocca
  • Università di Napoli Federico II
  • Università di Padova
  • Università di Trento (Trento)
  • Università di Pavia
  • Università di Perugiab
  • Università di Pisa
  • Scuola Normale Superiore di Pisa
  • Università di Roma La Sapienza
  • Università di Torinob
  • Università del Piemonte Orientale (Novara)
  • Università di Trieste
ISSN: 
  • 1434-6044
  • 1434-6052
Abstract: 
The production of J/ψ mesons is studied in pp collisions at √s = 7 TeV with the CMS experiment at the LHC. The measurement is based on a dimuon sample corresponding to an integrated luminosity of 314 nb-1. The J/ψ differential cross section is determined, as a function of the J/ψ transverse momentum, in three rapidity ranges. A fit to the decay length distribution is used to separate the prompt from the non-prompt (b hadron to J/ψ) component. Integrated over J/ψ transverse momentum from 6.5 to 30 GeV/c and over rapidity in the range {pipe}y{pipe} < 2.4, the measured cross sections, times the dimuon decay branching fraction, are 70.9 ± 2.1(stat.) ± 3.0(syst.) ± 7.8(luminosity) nb for prompt J/ψ mesons assuming unpolarized production and 26.0 ± 1.4(stat.) ± 1.6(syst.) ± 2.9(luminosity) nb for J/ψ mesons from b-hadron decays. © CERN for the benefit of the CMS collaboration 2011.
Issue Date: 
1-Mar-2011
Citation: 
European Physical Journal C, v. 71, n. 3, p. 1-26, 2011.
Time Duration: 
1-26
Source: 
http://dx.doi.org/10.1140/epjc/s10052-011-1575-8
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/72322
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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