arXiv:hep-ph/0008200·v1·High Energy Physics — Phenomenology
Hard and soft QCD in charmonium production
C. B. Mariotto (1) · M. B. Gay Ducati (1) · G. Ingelman (2,3) · ((1)IF-UFRGS, (2)Uppsala University, (3)DESY Hamburg)
Abstract
We show that both hard perturbative and soft non-perturbative QCD effects are important in hadroproduction of charmonium. Observed and 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.
Comments: 4 pages, 3 eps figures, uses sprocl.sty. To appear in the Proceedings of VII Hadron Physics 2000, Caraguatatuba, Brazil