Evidence of $\psi (3770)\to {\pi }^{0}J/\psi$

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

We report the first evidence for the hadronic transition $\psi (3770)\to {\pi }^{0}J/\psi$ using a data sample of $20.3{\mathrm{fb}}^{-1}$ collected at $\sqrt{s}=3.773$~GeV with the BESIII de…