Partonic structure of nuclei from UPCs

Authors

DOI:

https://doi.org/10.17161/kt73pp77

Keywords:

Heavy-ion scattering, ultraperipheral collisions, exclusive quarkonium production, dijet photoproduction, perturbative QCD, nuclear parton distributions, nuclear shadowing

Abstract

We present an overview of theoretical and phenomenological studies on the partonic structure of nuclei and small-$x$ QCD dynamics using photon-nucleus $(\gamma A$) scattering in heavy ion ultraperipheral collisions (UPCs). Focusing on nuclear shadowing, we review implications of coherent charmonium and inclusive dijet production in Pb-Pb UPCs at the LHC and discuss the potential of inelastic $\gamma A$ scattering accompanied by forward neutrons in a zero degree 
calorimeter (ZDC).

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Published

2026-09-09