An anlaysis on $J/ψ\toπ^0γ^*$ within resonance chiral theory

Yi-Hao Zhang, Shao-Zhou Jiang, Ling-Yun Dai

In this study, we analyze the first measurement of the electron-positron invariant mass spectrum in $J/\ddot{I}ˆ\to \ddot{I}{€}^0{e}^{+}{e}^{-}$ by BESIII, using the framework of resonance chiral theory.…