Observation of Cabibbo-Suppressed Two-Body Hadronic Decays and Precision Mass Measurement of the $\hat{I}{\text{c◯}}_c^0$ Baryon

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1082

The first observation of the singly Cabibbo-suppressed $\hat{I}{\text{c◯}}_c^0\to \hat{I}{\text{c◯}}^{-}{K}^{+}$ and $\hat{I}{\text{c◯}}_c^0\to \hat{I}{ž}^{-}\ddot{I}{€}^{+}$ decays is reported, using proton-proton collision data at a center…