Observation of $\Omega_{c}^{0}$ in E781(SELEX) Experiment at Fermilab

We report the observation of 107 $\pm$ 22 $\Omega_{c}^{0}$ events in $\Omega^{-} \pi^{-} \pi^{+} \pi^{+}$, $\Omega^{-} \pi^{+}$, and $\Xi^{-} K^{-} \pi^{+} \pi^{+}$ decay modes. The data were taken by the SELEX experiment (E781) spectrometer using 600 GeV/$c$ $\Sigma ^{-}$, $\pi ^{-}$ and 540 GeV/c $p$ beams. The mass of the $\Omega_{c}^{0}$ is measured to be $2706.6 \pm 2.0 \pm 2.1$, using the three decay modes.