Evidence for Simultaneous Production of \u3ci\u3eJ/ψ\u3c/i\u3e and ϒ Mesons

  • Abazov, V.
  • Bloom, Kenneth A.
  • Claes, Daniel R.
  • DeVaughan, Kayle
  • Dominguez, Aaron
  • Eads, M.
  • Katsanos, Ioannis
  • Malik, Sudhir
  • Snow, Gregory
  • Voutilainen, M.
  • Collaboration, D0
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Publication date
January 2016
Publisher
DigitalCommons@University of Nebraska - Lincoln
Language
English

Abstract

We report evidence for the simultaneous production of J/ψ and ϒ mesons in 8.1 fb−1 of data collected at [?] = 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

Extracted data

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