Energy-Energy Correlators in e⁺e^- and Deep Inelastic Scattering

2025/12/17 by Guo, Yuxun, Vogelsang, Werner, Yuan, Feng +1
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th)

paper · doi:10.48550/arxiv.2512.15896

Abstract

We study energy-energy correlators (EECs) in e⁺e^- annihilation and deep inelastic lepton-hadron scattering (DIS), focusing on aspects of nonperturbative physics in these observables. We introduce the EEC jet functions and investigate the infrared (IR) behavior of both small-angle EECs and angle-integrated EECs by performing explicit one-loop calculations. The factorization and universality of the EECs in these processes are demonstrated. A matching scheme is proposed to smoothly connect kinematic regions where different scaling behaviors with jet energy are observed. In combination with the next-to-leading order correction, this matching provides a good description of the EEC data and PYTHIA simulations in high-energy e⁺e^- annihilation. Predictions for DIS processes for future electron-ion collider kinematics are also presented.

Citations

• Machine Learning-Assisted Measurement of Lepton-Jet Azimuthal Angular Asymmetries in Deep-Inelastic Scattering at HERA

Related

• Universality in the Near-Side Energy-Energy Correlator
• Energy-Energy Correlators for Precision QCD
• Measurement of the energy-energy correlator in the back-to-back limit using the archived ALEPH e⁺e^- data at 91.2 GeV
• Energy-energy correlators in small and large systems
• Modification of the Jet Energy-Energy Correlator in Cold Nuclear Matter