Observation of ${\Xi }_c(2930{)}^0$ and updated measurement of $B^{-}\to K^{-}{\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ at Belle

Belle Collaboration, Y. B. Li, C. P. Shen +178

We report the first observation of the ${\Xi }_c(2930{)}^0$ charmed-strange baryon with a significance greater than 5$\sigma$. The ${\Xi }_c(2930{)}^0$ is found in its decay to $K^{-}{\Lambda }_c^{+}$ in $…