Nuclear dependence coefficient $\alpha (A,q_T)$ for the Drell-Yan and J/$\psi$ production

Xiaofeng Guo, Jianwei Qiu, Xiaofei Zhang

Define the nuclear dependence coefficient $\alpha (A,q_T)$ in terms of ratio of transverse momentum spectrum in hadron-nucleus and in hadron-nucleon collisions: $\frac{dσ^{hA}}{dq_T^2}/…