An overview of $\eta$ and ${\eta }^{\prime }$ decays at BESIII

Shuang-shi Fang, Andrzej Kupsc, Dai-hui Wei

The world's largest sample of 1.31 billion $J/\psi$ events accumulated at the BESIII detector, provides a unique opportunity to investigate $\eta$ and ${\eta }^{\prime }$ physics via two body $J/…