Evidence for Simultaneous Production of J /ψ and Mesons

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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.

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Abazov, V. M., Abbott, B., Acharya, B. S., Adams, M., Adams, T., Agnew, J. P., … Zivkovic, L. (2016). Evidence for Simultaneous Production of J /ψ and Mesons. Physical Review Letters, 116(8). https://doi.org/10.1103/PhysRevLett.116.082002

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