Bes Collaboration

Observation of a Charged Charmoniumlike Structure in $e^+e^-\rightarrow D^0D^-\pi^++c.c.$

We present a partial wave analysis of the process $e^+e^- \rightarrow D^0 D^- \pi^++c.c.$ using a data sample collected with the BESIII detector at a center-of-mass energy of 4682~MeV. A charged structure, referred to as the $X(3790)^-$ near the $D^0D^-$ mass threshold with a significance of $5.3\sigma$, which includes...