Hard and soft QCD in charmonium production
  We 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. 
C. B. Mariotto (1), M. B. Gay Ducati (1), G. Ingelman (2,3),   ((1)IF-UFRGS, (2)Uppsala University, (3)DESY Hamburg)