Studies of $XYZ$ states at BESIII

Abstract

With about 12 fb$^{-1}$ of collected data useful for the study of $XYZ$ states, BESIII collaboration continues the exploration of these exotic charmoniumlike states. Recent results of the measurements of the line-shape of $e^+e^-\to\pi^0\pi^0\psi(3686)$, $KKJ/\psi$, and $\pi^+D^0D^{*-}$, as well as the $J^P$ determination of $Z_c(3900)$ and $Z_c(3900)$ observed in $e^+e^-\to\phi\chi_{c1, 2}$ at $\sqrt{s}=4.6$~GeV will be presented.