  Using the CLEO detector at the Cornell Electron Storage Ring, we have
observed the Omega_c (css ground state) in the decay Omega_c -> Omega- e+ nu.
We find a signal of 11.4 +- 3.8 (stat) events. The probability that we have
observed a background fluctuation is 7.6 x 10-5. We measure BF(Omega_c ->
Omega- e+ nu) x sigma(e+ e- -> Omega_c X) = (42.2 +- 14.1 (stat) +- 5.7 (syst))
fb and R = Gamma(Omega_c -> Omega- pi+)/Gamma(Omega_c -> Omega- e+ nu) = 0.41
+- 0.19 (stat) +- 0.04 (syst). This is the first statistically significant
observation of an individual decay mode of the Omega_c in e+ e- annhiliation,
and the first example of a baryon decaying via beta-emmision, where no quarks
from the first generation participate in the reaction.
