Xi and AntiXi production in Pb+Pb collisions at 40 AGeV at CERN SPS

Abstract

First results on the production of Xi and AntiXi hyperons in Pb+Pb interactions at 40 AGeV are presented. The AntiXi/Xi ratio at midrapidity is studied as a function of collision centrality. The ratio shows no significant centrality dependence within statistical errors; it ranges from 0.07 to 0.15. The AntiXi/Xi ratio for central Pb+Pb collisions increases strongly with the collision energy.

6 pages, 6 figures, proceedings of SQM03, to be published in Journal of Physics G; V2: changes in table 1 and figure 5

References in corpus (2)

• ${\Xi }^{-}$ and ${\bar{\Xi }}^{+}$ baryon production in Au+Au collisions at $\sqrt{s_{NN}}=130$ GeV
• Omega and AntiOmega production in Pb+Pb and p+p collisions at 30, 40 and 158 AGeV

Cited by in corpus (4)

• Energy dependence of Lambda and Xi production in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV measured at the CERN Super Proton Synchrotron
• Report from NA49
• Energy dependence of hyperon production in nucleus-nucleus collisions at SPS
• Energy dependence of {\rm K}${}_{\mathrm{S}}^0$ and hyperon production at CERN SPS