Evidence for Simultaneous Production of J/ψ and ϒ Mesons Public Deposited

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  • Evidence for Simultaneous Production of J/psi and Upsilon Mesons
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  • 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 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, σ[subscript]eff=2.2±0.7(stat)±0.9(syst)  mb.
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  •  Abazov, V. M., Bassler, U., Bernardi, G., Besançon, M., Brown, D., Chapon, E., ... & Zivkovic, L. (2016). Evidence for Simultaneous Production of J/ψ and ϒ Mesons. Physical Review Letters, 116(8), 082002. doi:10.1103/PhysRevLett.116.082002
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