Baryon number transport via gluonic junctions

A novel non-perturbative gluon junction mechanism is introduced within the HIJING/B nuclear collision event generator to calculate baryon number trans port and hyperon production in pA and AA collisions. This gluonic mechanism can account for the observed large mid-rapidity valence baryon yield in Pb + Pb at 160 AGeV and predicts high initial baryon densities at RHIC. Howev er, the highly enhanced Lambda - <(Lambda)over bar> yield and the baryon tr ansverse momentum flow observed in this reaction can only be partially desc ribed. (C) 1998 Published by Elsevier Science B.V. All rights reserved.