Centrality dependence of strangeness and (anti)hyperon production at BNL   RHIC
  We evaluate strangeness produced in Au--Au interactions at   $\sqrt{s_{\rm NN}}=200$ GeV, as function of reaction participant number $A$, and obtain the relative strange quark content at hadronization. Strange baryon and antibaryon rapidity density yields are studied, relative to, and as function of, participant number, and produced hadron yields. 
Jean Letessier (Paris) and Johann Rafelski (Arizona)