[NT/RBRC] Probing cold nuclear matter effects with jet energy correlators at the EIC

by Yu Fu (Duke University)

Friday 18 Dec 2026, 11:00 → 13:00 US/Eastern

We study energy correlators inside jets produced in electron–nucleus deep inelastic scattering events, to probe cold nuclear matter effects. We first investigate the one-point energy correlator (OPEC) inside jets and provide predictions in kinematic regions relevant for the future Electron–Ion Collider. We find that the OPEC exhibits characteristic transition behavior as a function of the angle between the particles and the jet axis. The nuclear modification factor increases with increasing angle, driven by transverse-momentum broadening induced by multiple scattering in the nuclear medium.

We also study the two-point energy correlator (EEC). Employing the high-twist formalism to describe medium-induced parton energy loss, we derive an analytic expression for the nuclear modification of the EEC as a function of the opening angle between the two particles. The modification is found to be strongest at large angles within the jet cone. We further obtain explicit results for the dependence of the EEC modification on the jet energy, the scattering strength of cold nuclear matter, and the path length traversed by the jet in the medium.