Speaker
Linjian Li
Description
BESIII has the world’s largest samples of $J/\psi$ and $\psi(3686)$ events from $e^+e^-$ annihilations, which offer an ideal and clean laboratory to study light meson spectroscopy , in particular for the search for QCD exotics. Recent important achievements in this field, including the observation of a $1^{-+}$ state, $\eta_1(1855)$ in $J/\psi \to \gamma \eta \eta^\prime$, the observation of the $X(2600)$ in $J/\psi \to \gamma \eta^\prime \pi^+\pi^-$, and the PWA of $J/\psi\to \gamma \eta^\prime \eta^\prime$ will be highlighted.
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