High Energy Nucleus–Nucleus Collisions in View of the Multi-Peripheral Model

Abstract

The hypothesis of the multi peripheral model is extended to the hadronnucleus interactions and then generalized to the nucleus-nucleus case. The processing of the model depends on input parameters that are extracted from the features of the experiments in this field. The number of encountered nucleons from both target and projectile are estimated according to the eikonal scattering approach. The screening effect due to the interaction of the projectile nucleons in successive manner with the target nucleus is considered. The rapidity distributions of fast particles are reproduced for the successive collisions in p-S and 32 S-32 S interactions at 200 A GeV. A global fair agreement is found in comparison with data of the experiment SLAC-NA-035.

Thermodynamic Treatment of High Energy Heavy Ion Collision

“…Quantum effects influence the underlying microscopic dynamics only, which can be included in the equation of state, in the transport coefficients, or in the kinetic theory describing the reactions. During the collision and assuming straight line trajectories there can be target and projectile spectators in a collision [1][2][3] The rest of the nucleons may hit each other on the way forming a participant zone with both target and projectile nucleons in it. The most interesting phenomena and the new physics are in the participant zone.…”