Production of excited heavy quarkonia in $e^{+}{e}^{-}\to {\gamma }^{\ast }/Z^0\to |(Q\bar{Q})[n]⟩+\gamma$ at super $Z$ factory

Qi-Li Liao, Jun Jiang, Peng-Cheng Lu +1

Within the nonrelativistic quantum chromodynamics framework, we make a comprehensive study on the exclusive production of excited charmonium and bottomonium in $e^+e^-\to γ^*/Z^0 \…