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Evidence for Simultaneous Production of J /ψ and Mesons

  • (D0 Collaboration)
  • Joint Institute for Nuclear Research
  • University of Oklahoma
  • Tata Institute of Fundamental Research
  • University of Illinois at Chicago
  • Florida State University
  • University of Manchester
  • Petersburg Nuclear Physics InstituteGatchina
  • University of Michigan, Ann Arbor
  • Augustana College, Sioux Falls
  • Louisiana Tech University
  • Czech Technical University in Prague
  • Kyiv National Taras Shevchenko University
  • Universidad de los Andes Colombia
  • Université Blaise Pascal
  • Fermi National Accelerator Laboratory
  • University of Virginia
  • Northeastern University
  • University of Kansas
  • CEA Saclay
  • Universidade do Estado do Rio de Janeiro
  • Panjab University
  • Universités Paris VI and VII
  • University of Freiburg
  • Lancaster University
  • Imperial College London
  • University of Mississippi
  • Northern Illinois University
  • University of Nebraska-Lincoln
  • Stony Brook University
  • Lomonosov Moscow State University
  • NASU - Institute of Nuclear Research
  • University of Texas at Arlington
  • University of Göttingen
  • Michigan State University

Research output: Contribution to journalArticlepeer-review

71 Scopus citations

Abstract

We report evidence for the simultaneous production of J/ψ and mesons in 8.1 fb-1 of data collected at s=1.96 TeV by the D0 experiment at the Fermilab pp¯ Tevatron Collider. Events with these characteristics are expected to be produced predominantly by gluon-gluon interactions. In this analysis, we extract the effective cross section characterizing the initial parton spatial distribution, σeff=2.2±0.7(stat)±0.9(syst) mb.

Original languageEnglish
Article number082002
JournalPhysical Review Letters
Volume116
Issue number8
DOIs
StatePublished - Feb 25 2016

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