First observation of the ${\overline{B}}_s^0\to \hat{I}{›}_c^{+}\overline{\hat{I}}{›}_c{}^{-}$ decay and evidence for the ${\overline{B}}^0\to \hat{I}{›}_c^{+}\overline{\hat{I}}{›}_c{}^{-}$ decay

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1187

A search is presented for the two-body charmed baryonic decays ${\overline{B}}_{(s)}^0\to \hat{I}{›}_c^{+}\overline{\hat{I}}{›}_c{}^{-}$, using a data sample collected by the LHCb experiment duri…