Known decays of Omega-

(Only the first generation of decays, no cascades)

Final state Branching
$\Omega^{-}_{}$ $\to$ $\Lambda^{0}_{}$ $K^{-}_{}$ 6.7e-1
$\Omega^{-}_{}$ $\to$ $\Xi^{0}_{}$ $\pi^{-}_{}$ 2.3e-1
$\Omega^{-}_{}$ $\to$ $\Xi^{-}_{}$ $\pi^{0}_{}$ 8.4e-2
$\Omega^{-}_{}$ $\to$ $\Xi'^{0}_{}$ $\pi^{-}_{}$ 4.9e-4
$\Omega^{-}_{}$ $\to$ $\Xi^{0}_{}$ $e^{-}_{}$ $\bar{\nu}^{}_{e}$ 4.7e-3