Year: 2025
Type: article
Abstract: We compute medium corrections to the energy-energy correlator (EEC) for jets in electron-nucleus collisions at leading order in the QCD coupling and the interaction of the jet with the medium. We derive an analytical expression for the modification of the EEC as a function of the opening angle and show that the modification is strongest at large angles within the jet cone. We obtain explicit results for the dependence of the modification on the jet energy, the scattering power of cold nuclear matter, and the path length within the medium. We extend our calculations to gluon jets in proton-nucleus collisions and compare our results with recent preliminary data for proton-lead collisions at the LHC. We also discuss the role of comovers on the EEC in p+Pb collisions.
Source: Physical Review Letters
DOI: 10.1103/qxdv-cmrg
Authors: Yu Fu, Berndt Müller, Chathuranga Sirimanna
Institution: Duke University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G222768804, G2476331794, CSSI: Frameworks: X-Ion Collisions with a Statistically and Computationally Advanced Program Envelope (X-SCAPE), SI2-SSI: Collaborative Research: Jet Energy-Loss Tomography with a Statistically and Computationally Advanced Program Envelope (JETSCAPE), NUCLEAR PHYSICS AT EXTREME ENERGY DENSITY, NUCLEAR PHYSICS AT EXTREME ENERGY DENSITY, NUCLEAR PHYSICS AT HIGH ENERGY DENSITY
OpenAlex ID: W4414083075