Hosted by: Thomas Ulrich

Quantum chromodynamics has been extremely successful in describing a multitude of high-energy experiments with aid from the use of universal parton distribution functions. PDFs for the free proton are fairly well-constrained by experiment, but nuclear PDFs require elaboration. Three ingredients are necessary to obtain a nuclear PDF theoretically: (1) an account of the nuclear momentum distribution that includes the latest results regarding short range correlations; (2) a model of how nucleons immersed in the nuclear medium are modified at a quark-gluon level; and (3) the application of QCD evolution to connect the low momentum resolution scales at which the first two ingredients are obtained to the high momentum transfer scales relevant to the LHC and the EIC. These three ingredients will be described in detail, and an example of their application to proton-nucleus collisions at LHC energies will be provided.