Observation of the $Y(4230)$ and evidence for a new vector charmonium-like state $Y(4710)$ in $e^{+}{e}^{-}\to K_S^0{K}_S^{0}J/\psi$

M. Ablikim, M. N. Achasov, P. Adlarson +563

Cross sections for the process $e^{+}{e}^{-}\to K_S^0{K}_S^{0}J/\psi$ at center-of-mass energies from $4.128$ to $4.950$ GeV are measured using data samples with a total integra…