Nuclear Dependence in Transverse Momentum Distribution for Drell-Yan   Pair
  In terms of multiple scattering picture, I compute the nuclear dependence in Drell-Yan transverse momentum distribution, $d\sigma / dQ^2 dq_T^2$, in hadron-nucleus collisions. I present the results for large $q_T$ region and discuss the possible suppression in small $q_T$ region. 
Xiaofeng Guo (Columbia University)