Study of the doubly charmed tetraquark $T_{cc}^{+}$

LHCb collaboration, R. Aaij, A. S. W. Abdelmotteleb +994

An exotic narrow state in the $D^0{D}^0{\pi }^{+}$ mass spectrum just below the $D^{\ast +}{D}^0$ mass threshold is studied using a data set corresponding to an integrated luminosity of 9 fb$^{-1…