Baryon junction stopping at the SPS and RHIC via HIJING/B

Abstract

Baryon stopping at the SPS and RHIC energies is calculated by introducing a new baryon junction mechanism into HIJING. The exchange of a baryon junction, according to Regge phenomenology, leads to a cosh[(y − y CM)/2] rapidity dependence and an 1/ 4s energy dependence of the inclusive baryon cross section. This baryon junction dynamics also leads naturally to enhanced p T broadening in pA and AA together with enhanced mid-rapidity hyperon production.