Next-to-leading order QCD corrections to $Z\to {\eta }_Q+Q+\bar{Q}$

Xu-Chang Zheng, Xing-Gang Wu, Xi-Jie Zhan +2

It has been found that at a high luminosity $e^{+}{e}^{-}$ collider, sizable ${\eta }_c+c\bar{c}X$ and ${\eta }_b+b\bar{b}X$ events can be produced when it works around the $Z$ peak. In this paper,…