… and study of near-threshold D0D0 spectroscopy. [mX(3842) = 3842.72±0.16±0.12 MeV/c2; ΓX(3842) = 2.79±0.51±0.35 MeV ] This week the LHCb Collaboration announced the discovery of a new particle made of a charm and anti-charm quark. The results, which were presented at the International Workshop “e+e- Collisions From Phi to Psi 2019” held in Novosibirsk, are…