Light meson decays at BESIII

The world’s largest sample of J/\psi J/ψ events accumulated at the BESIII detector offers a unique opportunity to investigate \eta display="inline">η and \eta^\prime display="inline">η′ physics via two body radiative or hadronic decays. In recent years experiment has made significant progresses in \eta/\eta^\prime display="inline">η/η′ A selection highlights light meson spectroscopy are reviewed this report, including observation \eta^\prime\rightarrow\pi^+\pi^-\mu^+\mu^- display="inline">η′→π+π−μ+μ− , study \eta^\prime\rightarrow\pi^+\pi^-e^+e^- display="inline">η′→π+π−e+e− search for CP display="inline">CP -violation decay, rare decays \eta^\prime\rightarrow4\pi^0 display="inline">η′→4π0 \eta^\prime\rightarrow\gamma\gamma\eta display="inline">η′→γγη as well precision measurement branching fraction