  In anticipating the upcoming proton-lead run at the LHC in the near future,
we present predictions for the nuclear modification factor of transverse
momentum spectrum of $Z^0$ production and transverse momentum broadening of
vector boson ($J/\psi$, $\Upsilon$, $W/Z^0$) production in proton-lead
collisions at $\sqrt{s}=5$ TeV, respectively. We find that the measurement of
nuclear modification factor of $Z^0$ production provides a clean and
unambiguous test of the nuclear anti-shadowing proposed in the recent EPS09. In
addition, the dramatic difference in transverse momentum broadening between the
heavy quarkonium and $W/Z^0$ production could be a signature prediction of QCD
parton multiple scattering, and it provides valuable informations on color
neutralization of a produced heavy quark pair when it transmutes into a
physical quarkonium.
