  The production of Z bosons in pPb collisions at sqrt(s[NN]) = 5.02 TeV is
studied by the CMS experiment via the electron and muon decay channels. The
inclusive cross section is compared to pp collision predictions, and found to
scale with the number of elementary nucleon-nucleon collisions. The
differential cross sections as a function of the Z boson rapidity and
transverse momentum are measured. Though they are found to be consistent within
uncertainty with theoretical predictions both with and without nuclear effects,
the forward-backward asymmetry suggests the presence of nuclear effects at
large rapidities. These results provide new data for constraining nuclear
parton distribution functions.
