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  • Abazov, V. M., et al. (author)
  • Evidence for Simultaneous Production of J/psi and Upsilon Mesons
  • 2016
  • In: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 116:8
  • Journal article (peer-reviewed)abstract
    • We report evidence for the simultaneous production of J/psi and Upsilon mesons in 8.1 fb(-1) of data collected at root s = 1.96 TeV by the D0 experiment at the Fermilab p (p) over bar 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, sigma(eff) = 2.2 +/- 0.7(stat) +/- 0.9(syst) mb.
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