Comment on the hadronic decay of excited heavy quarkonia

Mu-Lin Yan, Yi Wei, Ting-Liang Zhuang

We make comments on ref.[Z.Phys. C73, 541 (1997)], and provide partial wave analysis to the decays of excited heavy S-wave $1^{-}$ quarkonia into the basic $1^{-}$ quarkonia state plus…