Observation of the doubly charmed baryon $\hat{I}{ž}_{cc}^{+}$ with the LHCb Run 3 detector

LHCb collaboration, R. Aaij, M. Abdelfatah +1106

The first observation of the doubly charmed baryon $\hat{I}{ž}_{cc}^{+}$ is reported through its decay to the $\hat{I}{›}_c^{+}{K}^{-}\ddot{I}{€}^{+}$ final state, with a statistical significance exceeding se…