- This paper presents the first measurement of inclusive J/ψ production cross section in the forward pseudorapidity region 2.5 ≤ |ηJ/ψ| ≤ 3.7 in pp̄ collisions at √s = 1.8 TeV. The results are based on 9.8 pb-1 of data collected using the D0 detector at the Fermilab Tevatron Collider. The inclusive J/ψ cross section for transverse momenta between 1 and 16 GeV/c is compared with theoretical models of charmonium production.
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