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Evidence for Simultaneous Production of J/ψ and Υ Mesons
D0 Collaboration
D0 Collaboration
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Abstract
We report evidence for the simultaneous production of J/ψ and Υ mesons in 8.1 fb−1 of data collected at √s=1.96 TeV by the D0 experiment at the Fermilab p¯p 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.
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2016
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American Physical Society
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Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Agnew, J. P., ... & Atkins, S. (2016). Evidence for simultaneous production of J/ψ and ϒ mesons. Physical review letters, 116(8), 082002.