2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/39861We show that both hard perturbative and soft non-perturbative QCD effects are important in hadroproduction of charmonium. Observed $x_F$ and $p_\perp$ distributions of J/psi in fixed target experiments can be well described by our Monte Carlo model based on perturbative QCD and the Color Evaporation Model.4 pages, 3 eps figures, uses sprocl.sty. To appear in the Proceedings of VII Hadron Physics 2000, Caraguatatuba, BrazilHigh Energy Physics - Phenomenologytext