Measurement of $e^{+}{e}^{-}\to {\pi }^0{\pi }^0\psi (3686)$ at $\sqrt{s}$ from 4.009 to 4.600 GeV and observation of a neutral charmoniumlike structure

M. Ablikim, M. N. Achasov, S. Ahmed +436

Using $e^{+}{e}^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to an integrated luminosity of 5.2 $f{b}^{-1}$ at center-of-mass energies ($…