Study of the process $e^{+}{e}^{-}\to {\pi }^0{\pi }^{0}J/\psi$ and neutral charmonium-like state $Z_c(3900{)}^0$

BESIII Collaboration

Cross sections of the process $e^{+}{e}^{-}\to {\pi }^0{\pi }^{0}J/\psi$ at center-of-mass energies between 3.808 and 4.600 GeV are measured with high precision by using 12.4 $f{b}^{-1}$ of data samples…