Observation of a new charmed baryon decaying to $\hat{I}{ž}_c^{+}\ddot{I}{€}^{-}\ddot{I}{€}^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +1139

The $\hat{I}{ž}_c^{+}\ddot{I}{€}^{-}\ddot{I}{€}^{+}$ spectrum is investigated using proton-proton collisions at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 5.4fb${}^{-1}$, colle…