REDUCTION OF STRANGENESS SUPPRESSION AND STRANGE ANTIBARYON PRODUCTION IN SULFUR-NUCLEUS COLLISIONS AT 200A GEV

We use the event generator LUCIAE to analyse NA35 data of the (p) over bar and <(Lambda)over bar> yields,the transverse mass distributions a nd the ratio <(Lambda)over bar> (p) over bar in pp and central sulphur -nucleus collisions at 200A GeV. The results seem to indicate that NA3 5 data might imply the reduction of strangeness suppression in ultrare lativistic nucleus-nucleus collisions comparing to the nucleon-nucleon collision at the same energy. However, the ratio <(Lambda)over bar>/( p) over bar approaching to unity in AA collisions comparing to pp coll ision does not necessarily mean quark flavor symmetry.