  A Monte Carlo simulator is presented to reproduce data of nucleus-nucleus
interactions at high energies. The program is designed in a microscopic point
of view, where the cascade approach is applied. Moreover, each nucleon from
both the target and the projectile is followed up on the time scale along the
collision time. The effect of the mean field that depends on the nuclear
density is considered. Elastic and inelastic scattering are allowed for the
nucleon binary collisions during the cascade according to their center of mass
energies. Particle productions are studied through the fragmentation of strings
and sub-strings, which may be formed due to the color field between the
interacting quarks rather than the gluing interactions. The predictions of the
Monte Carlo are fairly compared with the recent CERN data of p-32S and 32S-32S
collisions at 200 A GeV incident energy.
