Study of $e^{+}{e}^{-}\to h^{+}{h}^{-}J/\ddot{I}ˆ(h=\ddot{I}€,K,p)$ via initial-state radiation at Belle~II

Belle II Collaboration, M. Abumusabh, I. Adachi +417

Using a data sample of 427.9 fb${}^{-1}$ collected by the Belle~II detector at or near the $\hat{I}\yen (4S)$ and $\hat{I}\yen (10753)$ resonances, the cross sections for $e^{+}{e}^{-}\to h^{+}{h}^{-}J/\ddot{I}ˆ$ $(h=π/K…