Results on the production of baryons with |S| = 1, 2, 3 and strange mesons in S-W collisions at 200 GeV/c per nucleon

Abstract

We report results on the production of strange baryons/antibaryons with 1, 2, and 3 units of strangeness (Λ, Ξ and Ω) and mesons (Ks0, K+ and K-) in WA85 experiment at the CERN SPS. This experiment was designed to study the production of strange particles in central SW collisions at 200 GeV/c per nucleon, in the central rapidity region with medium to high pt. We have measured the inverse slopes of the mt distributions of such particles and the production ratios Λ/Λ, Ξ+/Ξ-, Ξ-/Λ, Ξ+/Λ, Ks0/Λ, Ks0/Λ, (Ω- + Ω+) (Ξ- + Ξ+) and K+ K-. Preliminary results on the production ratios Ξ-/Λ and Ξ+/Λ in pW collisions at 200 GeV/c are also presented. © 1995