MONTE-CARLO MODEL FOR MULTIPARTICLE PRODUCTION AT ULTRARELATIVISTIC ENERGIES

The Monte Carlo parton string model for multiparticle production in hadron-hadron, hadron-nucleus, and nucleus-nucleus collisions at high energies is described. An adequate choice of the parameters in the model gives the possibility of recovering the main results of the dual parton model, with the advantage of treating both hadron and nuclear interactions on the same footing, reducing them to interactions between partons. Also the possibility of considering both soft and hard parton interactions is introduced. Comparison to the available experimental data on nucleon and nuclear collisions, together with predictions for mean multiplicities, net baryon rapidity distributions, and the temporal evolution of meson densities for heavy ion collisions at the CERN Super Proton Synchrotron (194A GeV) and the BNL Relativistic Heavy Ion Collider (200A GeV) are presented. Furthermore, predictions for charm production at these energies are given.