Recent LHC W/Z vector boson production data in proton-lead collisions
are quite sensitive to the heavier flavors (especially the strange
PDF), and this complements the information from neutrino-DIS data. As
the proton flavor determination is dependent on nuclear corrections
(from heavy target DIS, for example), LHC heavy ion measurements can
also help improve proton PDFs. We introduce a new implementation of
the nCTEQ code (nCTEQ++) based on C++ which has a modular strucure and
enables us to easily integrate programs such as HOPPET, APPLgrid, and
MCFM. Using ApplGrids generated from MCFM, we use nCTEQ++ to
perform a fit including the p-Pb LHC W/Z vector boson data.