Different Nuclear Dependence of $J/\psi$ and ${\psi }^{\prime }$ Production in p-A and A-p Collisions

Yong-Bin He, Wei-Qin Chao, Chong-Shou Gao

While presently available p-A data observe that the nuclear dependence of $J/\psi$ and ${\psi }^{\prime }$ production is the same within errors, we show that different nuclear dependence of…