COLLECTIVE FLOW DISTRIBUTIONS AND NUCLEAR STOPPING IN HEAVY-ION COLLISIONS AT AGS, SPS AND RHIC

Abstract

We study the production of proton, antiproton and net-proton at AGS, SPS and RHIC within the framework of non-uniform flow model (NUFM) in this paper. It is found that the system of RHIC has stronger longitudinally non-uniform feature than that of AGS and SPS, which means that nuclei at RHIC energy region is much more transparent. The NUFM model provides a very good description of all proton rapidity at the whole AGS, SPS and RHIC. It is shown that our analysis relates closely to the study of nuclear stopping and longitudinally non-uniform flow distribution of experiment. This comparison with AGS and SPS help us to understand the feature of particle stopping of thermal freeze-out at RHIC experiment.