Amplitude analysis of $J/\psi \to \gamma\pi^0\pi^0$

The radiative decays of the $J/\psi$ are of great importance for the search and the identification of the scalar glueball. We discuss an amplitude analysis for the $J/\psi$ radiative decay to $\pi^0\pi^0$, and apply the formalism to the data recently published by BESIII.