${\Omega }^{-}$ and ${\bar{\Omega }}^{+}$ production in Au+Au collisions at $\sqrt{s_{NN}}$ = 130 and 200 GeV

Abstract

Mid-rapidity Omega and anti-Omega production in Au+Au collisions at RHIC is studied with the STAR experiment. We report preliminary results on yields and spectra at $\sqrt{s_{NN}}$ = 130 and 200 GeV. Production relative to negatively charged hadrons (h-) as well as thermal freeze-out and collective expansion are discussed.

4 pages, 5 figures, 1 table, Contribution to Quark Matter 2002, Nantes, France, July 2002

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