The unambiguous discovery in both production and decay was by BARNES 1964 . The quantum numbers follow from the assignment of the particle to the baryon decuplet. DEUTSCHMANN 1978 and BAUBILLIER 1978 rule out $\mathit J = 1/2$ and find consistency with $\mathit J = 3/2$. AUBERT,BE 2006 finds from the decay angular distributions of ${{\mathit \Xi}_{{c}}^{0}}$ $\rightarrow$ ${{\mathit \Omega}^{-}}{{\mathit K}^{+}}$ and ${{\mathit \Omega}_{{c}}^{0}}$ $\rightarrow$ ${{\mathit \Omega}^{-}}{{\mathit K}^{+}}$ that $\mathit J = 3/2$; this depends on the spins of the ${{\mathit \Xi}_{{c}}^{0}}$ and ${{\mathit \Omega}_{{c}}^{0}}$ being $\mathit J = 1/2$, their supposed values. We have omitted some results that have been superseded by later experiments. See our earlier editions.
