Neutral vector boson production in pp and pA collisions at hadron colliders

I discuss the $Z/\gamma^*$ gauge boson production in $pp$ and $p\bar{p}$ collisions with the focus on non-perturbative contributions to the transverse momentum distribution based on the Collins-Soper-Sterman (CSS) resummation formalism. The dependence of the CSS resumed cross section on resummation scales and other factors is estimated. I also present a study of $Z/\gamma^*$ production in proton-lead and lead-lead collisions, where the small-$x$ shadowing and moderate-$x$ antishadowing effects are shown in transverse momentum and rapidity distributions.