RECENT RESULTS FROM THE NA36 EXPERIMENT

Measurements of the production of Lambda particles in S+Pb and S+S col lisions at a beam momentum of 200 GeV/c per nucleon are presented. The S+Pb data was taken with two different experimental configurations, a nd the results agree well with each other. The effects of a new Monte Carlo simulation of the NA36 TPC on the efficiency calculations are di scussed. The Lambda rapidity and multiplicity distributions are then c ompared to three theoretical models of heavy ion interactions, and to the NA35 results. There is still a significant disagreement between th e two experiments. The comparison to the models indicates that reinter actions of secondaries are important in explaining the observed Lambda yields. Finally, the yields of doubly strange baryons in S+Pb interac tions have been recalculated using the new efficiencies. The ratios of double to singly strange baryons are unchanged from the previously pu blished results.