Strange and Non-Strange (Anti-)Baryon Production at 200 GeV per Nucleon

Abstract

Rapidity distributions of net hyperons ($Λ- \overlineΛ$) are compared to distributions of participant protons ($p - \overline{p}$). Strangeness production (mean multiplicities of produced $Λ/Σ^0$ hyperons and $\langle K + \overline{K} \rangle$) in central nucleus-nucleus collisions is shown for different collision systems at different energies. An enhanced production of $\overlineΛ$ compared to $\overline{p}$ is observed at 200 GeV per nucleon.