Xiao-Peng Wang

Relativistic corrections to heavy quarkonium $+\gamma$ production at super Z factory

In the framework of nonrelativistic quantum chromodynamics, we study the $\mathcal{O}(v^2)$ relativistic corrections to heavy-quarkonium production associated with a photon at future electron-positron colliders operated in the Z-factory mode. S-, P-, and D-wave heavy quarkonia as well as the mixed state $\psi(3770)$ ar...