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We present the reweighting of two sets of nuclear PDFs, nCTEQ15 and EPPS16,using a selection of experimental data on heavy-flavor meson [D0, J/psi, J/psifrom B and Upsilon(1S)] production in proton-lead collisions at the LHC whichwere not used in the original determination of these nuclear PDFs. Thereweighted PDFs exhibit significantly smaller uncertainties thanks to these newheavy-flavor constraints. We present a comparison with another selection ofdata from the LHC and RHIC which were not included in our reweightingprocedure. The comparison is overall very good and serves as a validation ofthese reweighted nuclear PDF sets, which we dub nCTEQ15_rwHF & EPPS16_rwHF.This indicates that the LHC and forward RHIC heavy-flavor data can be describedwithin the standard collinear factorization framework with the same (universal)small-x gluon distribution. We discuss how we believe such reweighted PDFsshould be used as well as the limitations of our procedure.

Reweighted nuclear PDFs using Heavy-Flavor Production Data at the LHC: nCTEQ15_rwHF & EPPS16_rwHF