$\Omega^-$ and $\bar\Omega^+$ production in Au+Au collisions at   $\sqrt{s_{NN}}$ = 130 and 200 GeV
  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. 
Christophe Suire (for the STAR Collaboration)