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Related papers: Energy-Energy Correlators in $e^+e^-$ and Deep Ine…

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The energy-energy correlator (EEC) is an event shape observable which probes the angular correlations of energy depositions in detectors at high energy collider facilities. It has been investigated extensively in the context of precision…

High Energy Physics - Phenomenology · Physics 2021-05-19 Hai Tao Li , Yiannis Makris , Ivan Vitev

In this contribution to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021) we review recent progress in the evaluation and application of the Energy-Energy Correlator (EEC) event shape observable in…

High Energy Physics - Phenomenology · Physics 2022-03-15 Duff Neill , Gherardo Vita , Ivan Vitev , Hua Xing Zhu

We investigate the energy-energy correlator (EEC) of hadrons produced on the same side in $e^+e^-$ annihilation or in leading jets in $pp$ collisions. We observe a remarkable universality of the correlator. Using a non-perturbative…

High Energy Physics - Phenomenology · Physics 2024-10-29 Xiaohui Liu , Werner Vogelsang , Feng Yuan , Hua Xing Zhu

We study the azimuthal angle dependence of the energy-energy correlators $\langle \mathcal{E}(\hat{n}_1)\mathcal{E}(\hat{n}_2)\rangle$ in the back-to-back region for $e^+e^-$ annihilation and deep inelastic scattering (DIS) processes with…

High Energy Physics - Phenomenology · Physics 2024-06-06 Zhong-Bo Kang , Kyle Lee , Ding Yu Shao , Fanyi Zhao

Energy-energy correlators (EECs) provide a powerful tool to study the evolution of scattered partons into final-state hadrons. In these proceedings, a variety of energy correlator measurements performed by the ALICE collaboration are…

Nuclear Experiment · Physics 2025-07-01 Beatrice Liang-Gilman

Energy-energy correlators (EECs) provide a sensitive probe of both perturbative and nonperturbative dynamics in relativistic heavy-ion collisions. Jet-medium interactions enhance particle multiplicity within the jet cone, which must be…

Nuclear Theory · Physics 2026-05-12 Rushil Saraswat , Aditya Prasad Dash , Huan Zhong Huang , Gang Wang , Xin-Nian Wang , Zhong Yang

The two-point energy-energy correlator (EEC) is a novel jet substructure observable probing the correlation of energy flow within jets. In these proceedings, three EEC measurements performed by the ALICE Collaboration are reported. First is…

Nuclear Experiment · Physics 2025-10-21 Anjali Nambrath

We generalize the conventional Energy-Energy Correlator (EEC) to include the azimuthal angle dependence, so to define azimuthal angle dependent EEC observables. We study this new EEC observable in $e^+e^-$ and semi-inclusive deep inelastic…

High Energy Physics - Phenomenology · Physics 2023-07-14 Zhong-Bo Kang , Kyle Lee , Ding Yu Shao , Fanyi Zhao

The future electron-ion collider (EIC) will produce the first-ever high energy collisions between electrons and a wide range of nuclei, opening a new era in the study of cold nuclear matter. Quarks and gluons produced in these collisions…

High Energy Physics - Phenomenology · Physics 2025-10-03 Kyle Devereaux , Wenqing Fan , Weiyao Ke , Kyle Lee , Ian Moult

We investigate the transverse energy-energy correlators (TEEC) in the small-$x$ regime at the upcoming Electron-Ion Collider (EIC). Focusing on the back-to-back production of electron-hadron pairs in both $ep$ and $eA$ collisions, we…

High Energy Physics - Phenomenology · Physics 2024-06-06 Zhong-Bo Kang , Jani Penttala , Fanyi Zhao , Yiyu Zhou

We investigate energy correlators in semi-inclusive electron-positron annihilation as precision probes of parton hadronization dynamics. Using soft-collinear effective theory, we analyze the correlation patterns between the examined hadron…

High Energy Physics - Phenomenology · Physics 2026-01-21 Yu Jiao Zhu

We present a comprehensive global analysis of Energy-Energy Correlation (EEC) data in electron-positron annihilation into hadrons, spanning a wide range of center-of-mass energies ($7.7\,\,\text{GeV}\!\leq\!\sqrt{s}\!\leq\!…

High Energy Physics - Phenomenology · Physics 2026-03-20 Ugo Giuseppe Aglietti , Giancarlo Ferrera , Lorenzo Rossi

Energy-energy-correlators (EEC's) are a promising observable to study the dynamics of jet evolution in the quark-gluon plasma (QGP) through its imprint on angular scales in the energy flux of final-state particles. We carry out the first…

High Energy Physics - Phenomenology · Physics 2024-04-03 Zhong Yang , Yayun He , Ian Moult , Xin-Nian Wang

Energy-energy correlators (EECs), which are energy-weighted cross-sections of particle pairs, offer incisive probes into QCD dynamics, across the full scale of jet evolution, by separating energy scales in the jet fragmentation through the…

Nuclear Experiment · Physics 2025-12-16 Minyoung Hwang

We study the event shape variables, transverse energy energy correlation TEEC $(\cos \phi)$ and its asymmetry ATEEC $(\cos \phi)$ in deep inelastic scattering (DIS) at the electron-proton collider HERA, where $\phi$ is the angle between two…

High Energy Physics - Phenomenology · Physics 2020-12-30 Ahmed Ali , Gang Li , Wei Wang , Zhi-Peng Xing

We study the collinear limit of the energy-energy correlator (EEC) in $e^+e^-$ collisions, focusing on the transition from the perturbative QCD regime at relatively large angles to the non-perturbative region at small angles. To describe…

High Energy Physics - Phenomenology · Physics 2025-07-24 Enrico Herrmann , Zhong-Bo Kang , Jani Penttala , Congyue Zhang

We study particle correlations in high energy jets by comparing the measured energy-energy correlator (EEC) with that constructed from two individual energy flows with respect to the jet axis. This comparison demonstrates that genuine…

High Energy Physics - Phenomenology · Physics 2025-07-28 Wenbin Zhao , Volker Koch , Feng Yuan

Jet substructure is a powerful tool to probe the time evolution of a parton shower. However, many of the analysis methods used to extract splitting formation times from jet substructure, such as Soft Drop grooming and the Lund plane, focus…

High Energy Physics - Experiment · Physics 2023-09-13 Andrew Tamis

This paper presents a fully-corrected measurement of the energy-energy correlator (EEC) within jets in pp collisions. The EEC traces the energy flow as a highly energetic parton undergoes a QCD shower followed by the confinement of partons…

High Energy Physics - Experiment · Physics 2024-11-01 ALICE Collaboration

Recently, energy-energy correlators (EECs) have garnered renewed interest for studying hadronic collisions at the Large Hadron Collider (LHC) and the Relativistic Heavy Ion Collider (RHIC). EEC measurements within jets provide a clear scale…

High Energy Physics - Experiment · Physics 2025-01-10 Hannah Bossi , Austin Baty , Yi Chen , Yu-Chen Chen , Gian-Michele Innocenti , Marcello Maggi , Chris McGinn , Yen-Jie Lee
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