C. Markert

Ξ− and Ξ+ production in central Pb+Pb collisions at 158 GeV/c per nucleon

Results of the production of Xi and Xi-bar hyperons in central Pb+Pb interactions at 158 GeV/c per nucleon are presented. This analysis utilises a global reconstruction procedure, which allows a measurement of 4pi integrated yields to be made for the first time. Inverse slope paramters, which are determined from an exponential fit to the transverse mass spectra, are shown. Central rapidity densities are found to be 1.49 +- 0.08 and 0.33 +- 0.04 per event per unit of rapidity for Xi and Xi-bar respectively. Yields integrated to full phase space are 4.12 +- 0.02 and 0.77 +- 0.04 for Xi and Xi-bar. The ratio of Xi-bar/Xi at mid-rapidity is 0.22 +- 0.03.

Lambda and lambda production in central Pb-Pb collisions at 40, 80, and 158A GeV.

Production of Lambda and Antilambda hyperons was measured in central Pb-Pb collisions at 40, 80, and 158A GeV beam energy on a fixed target. Transverse mass spectra and rapidity distributions are given for all three energies. The Lambda/pi ratio at midrapidity and in full phase space shows a pronounced maximum between the highest BNL Alternating Gradient Synchrotron and 40A GeV CERN Super Proton Synchrotron energies, whereas the Lambda/pi ratio exhibits a monotonic increase.

Energy dependence of Λ and Λ¯ production at CERN-SPS energies

Rapidity distributions for

Lambda production in central Pb + Pb collisions at CERN-SPS energies

\Lambda

Strange resonance production in p + p and Au + Au collisions at RHIC energies

and

What do we learn from resonance production in heavy ion collisions

\bar{\Lambda}

Resonance production in heavy ion collisions

hyperons in central Pb-Pb collisions at 40, 80 and 158 A

Resonance production in STAR

\cdot

Strangeness from 20 A GeV to 158 A GeV

GeV and for

Search for deconfinement in NA49 at the CERN SPS

{\rm K}_{s}^{0}