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

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We introduce the concept of the nucleon energy correlators, a set of novel objects that encode the microscopic details of a nucleon, such as the parton angular distribution in a nucleon, the collinear splitting to all orders, as well as the…

High Energy Physics - Phenomenology · Physics 2023-03-08 Xiaohui Liu , Hua Xing Zhu

We initiate a systematic study of fragmentation energy correlators (FECs), which generalize traditional fragmentation functions and encode non-perturbative information about transverse dynamics in parton fragmentation processes. We define…

High Energy Physics - Phenomenology · Physics 2025-10-20 Qing-Hong Cao , Zhite Yu , C. -P. Yuan , Shutao Zhang , Hua Xing Zhu

In this letter, we relate the factorization for $e^+e^- \to h_1 h_2 X$ to the factorization for energy-energy correlators in the collinear limit. This enables us to give a nonperturbative proof of factorization for the energy correlators,…

High Energy Physics - Phenomenology · Physics 2025-11-19 Kyle Lee , Iain Stewart

Correlations between charged particles in deep inelastic ep scattering have been studied in the Breit frame with the ZEUS detector at HERA using an integrated luminosity of 6.4 pb-1. Short-range correlations are analysed in terms of the…

High Energy Physics - Experiment · Physics 2012-08-27 ZEUS Collaboration

Energy correlators are a type of observables that measure how energy is distributed across multiple detectors as a function of the angles between pairs of detectors. In this paper, we study the three-point energy correlator (EEEC) at lepton…

High Energy Physics - Phenomenology · Physics 2024-11-15 Anjie Gao , Tong-Zhi Yang , Xiaoyuan Zhang

The energy-energy correlation (EEC) function in $e^+e^-$ annihilation is currently the only QCD event shape observable for which we know the full analytic result at the next-to-leading order (NLO). In this work we calculate the EEC…

High Energy Physics - Phenomenology · Physics 2019-06-17 Ming-xing Luo , Vladyslav Shtabovenko , Tong-Zhi Yang , Hua Xing Zhu

Energy correlators are theoretically simple and physically intuitive observables that bridge experimental and theoretical particle physics. They have for example enabled the most precise jet substructure determination of the strong coupling…

High Energy Physics - Phenomenology · Physics 2025-10-09 Samuel Alipour-fard , Wouter J. Waalewijn

In this Letter, we study the collinear limit of the Energy-Energy Correlator (EEC) in single-inclusive jet production in proton-proton ($pp$) and proton-nucleus ($pA$) collisions. We introduce a non-perturbative model that allows us to…

High Energy Physics - Phenomenology · Physics 2025-06-30 João Barata , Zhong-Bo Kang , Xoán Mayo López , Jani Penttala

Electron-positron ($e^+e^-$) collisions provide a clean environment for precision tests of Quantum Chromodynamics (QCD) due to the absence of hadronic initial-state effects. We present a novel analysis of archived ALEPH data from the Large…

High Energy Physics - Experiment · Physics 2025-05-20 Hannah Bossi , Yu-Chen Chen , Yi Chen , Jingyu Zhang , Gian Michele Innocenti , Anthony Badea , Austin Baty , Marcello Maggi , Chris McGinn , Yen-Jie Lee

In this paper the nuclear configurational entropy of the energy--energy correlation function is scrutinized, in $e^+e^-$ collisions to hadrons in the back-to-back region, within the QCD perturbative theory. The critical points of the…

High Energy Physics - Phenomenology · Physics 2019-05-22 G. Karapetyan

We report the first measurement of one- and two-point energy correlators within jets in transversely polarized proton-proton collisions at $\sqrt{s}=200$ GeV, using the STAR detector at RHIC. These observables quantify the energy-weighted…

High Energy Physics - Experiment · Physics 2026-04-21 The STAR Collaboration

We propose nucleon energy correlators (NECs) as a novel framework to probe electroweak light-quark dipole operators in deep inelastic scattering with an unpolarized nucleon. These operators encode chirality-flipping interactions, whose…

High Energy Physics - Phenomenology · Physics 2026-04-07 Yingsheng Huang , Xuan-Bo Tong , Hao-Lin Wang

Energy-energy correlators are constructed by averaging the number of charged particle pairs within jets, weighted by the product of their transverse momenta, as a function of the angular separation of the particles within a pair. They are…

Nuclear Experiment · Physics 2025-05-23 CMS Collaboration

Heavy flavor jets provide ideal tools to probe the mass effect on jet substructure in both vacuum and quark-gluon plasma (QGP). Energy-energy correlator (EEC) is an excellent jet substructure observable owning to its strong sensitivity to…

High Energy Physics - Phenomenology · Physics 2024-09-20 Wen-Jing Xing , Shanshan Cao , Guang-You Qin , Xin-Nian Wang

We study the QCD scaling behavior of the small-angle Energy-Energy Correlator (EEC), focusing on the transition between its perturbative pre-confinement and non-perturbative post-confinement regimes. Applying the light-ray Operator Product…

High Energy Physics - Phenomenology · Physics 2025-07-23 Cyuan-Han Chang , Hao Chen , Xiaohui Liu , David Simmons-Duffin , Feng Yuan , Hua Xing Zhu

Energy-energy correlators (EECs) within high energy jets serve as a key experimentally accessible quantity to probe the scale and structure of the quark-gluon plasma (QGP) in relativistic heavy-ion collisions. The CMS Collaboration's first…

High Energy Physics - Phenomenology · Physics 2025-03-12 Liliana Apolinário , Raghav Kunnawalkam Elayavalli , Nuno Olavo Madureira , Jun-Xing Sheng , Xin-Nian Wang , Zhong Yang

We introduce a set of correlations between energy flow and event shapes that are sensitive to the flow of color at short distances in jet events. These correlations are formulated for a general set of event shapes, which includes jet…

High Energy Physics - Phenomenology · Physics 2014-11-17 Carola F. Berger , Tibor Kucs , George Sterman

The $e^+e^-$ annihilation of unpolarized beams is free from initial hadron states or initial anisotropy around the azimuthal angle, hence ideal for studying the correlations of dynamical origin via final state jets. We investigate the…

High Energy Physics - Phenomenology · Physics 2025-12-03 Xuan Chen , Yuesheng Dai , Shi-Yuan Li , Zong-Guo Si , Huiting Sun

Correlations in deep-inelastic scattering at HERA are investigated in order to test perturbative QCD and quark fragmentation universality. Two-particle correlations at small angular separations are measured in the Breit frame and compared…

High Energy Physics - Experiment · Physics 2007-05-23 S. V. Chekanov , L. Zawiejski

We investigate the power-suppressed corrections to the fragmentation functions of the current jet in non-singlet deep inelastic lepton-hadron scattering. The current jet is defined by selecting final-state particles in the current…

High Energy Physics - Phenomenology · Physics 2010-02-03 M. Dasgupta , G. E. Smye , B. R. Webber