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We investigate the partonic origin of the proton longitudinal spin using spin-dependent energy correlators measured in lepton-hadron collisions with longitudinally polarized proton beams. These observables encode angular correlations in…

高能物理 - 唯象学 · 物理学 2026-05-19 Jun Gao , Hai Tao Li , Yu Jiao Zhu

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…

高能物理 - 唯象学 · 物理学 2026-01-21 Yu Jiao Zhu

Event shape observables have been widely used for precision QCD studies at various lepton and hadron colliders. We present the most accurate calculation of the transverse-energy-energy correlation event shape variable in deep-inelastic…

高能物理 - 唯象学 · 物理学 2020-12-02 Hai Tao Li , Ivan Vitev , Yu Jiao Zhu

A metric on the space of collider physics data enables analysis of its geometrical properties, like dimensionality or curvature, as well as quantifying the density with which a finite, discrete ensemble of data samples the space. We provide…

高能物理 - 唯象学 · 物理学 2025-09-01 Andrew J. Larkoski

We have conducted the first simultaneous global fit of the strong coupling constant $\alpha_s$ and the Collins-Soper (CS) kernel using the energy-energy correlators (EEC) of $e^{+} e^{-}$ collisions in the back-to-back limit. This analysis,…

高能物理 - 唯象学 · 物理学 2024-11-27 Zhong-Bo Kang , Jani Penttala , Congyue Zhang

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…

高能物理 - 唯象学 · 物理学 2024-06-06 Zhong-Bo Kang , Kyle Lee , Ding Yu Shao , Fanyi Zhao

N-point energy correlators are powerful observables for studying strong interactions, with applications ranging from extractions of the strong coupling $\alpha_s$ to probes of jet modification in heavy-ion collisions and determination of…

高能物理 - 唯象学 · 物理学 2026-03-19 Ankita Budhraja , Isabelle Pels , Wouter J. Waalewijn

We critically examine the back-to-back limit of the energy-energy correlation (EEC) in $e^+e^-$ annihilation as a potential source of information on the Collins-Soper kernel and the strong coupling constant. The analysis is performed within…

高能物理 - 唯象学 · 物理学 2025-07-24 Alejandro Bris Cuerpo , Ignazio Scimemi , Alexey Vladimirov

The energy-energy correlation (EEC) between two detectors in $e^+e^-$ annihilation was computed analytically at leading order in QCD almost 40 years ago, and numerically at next-to-leading order (NLO) starting in the 1980s. We present the…

高能物理 - 唯象学 · 物理学 2018-03-14 Lance J. Dixon , Ming-xing Luo , Vladyslav Shtabovenko , Tong-Zhi Yang , Hua Xing Zhu

Energy correlators have recently attracted significant attention in the study of heavy ion collisions due to their potential to robustly connect experimental measurements with an underlying quantum field theoretic description. While…

高能物理 - 唯象学 · 物理学 2025-03-19 João Barata , Ian Moult , Andrey V. Sadofyev , João M. Silva

Energy correlators exhibit well-understood scaling behavior in the collinear limit, governed by perturbative QCD dynamics. We explore how this scaling regime is broken by new physics, converting precise energy correlator measurements into a…

高能物理 - 唯象学 · 物理学 2026-05-29 Lorenzo Ricci , Marc Riembau , Minho Son

The $N$-point energy correlator measures the energy flux through $N$ detectors. We present a general framework that characterizes its full angular dependence in a series of \textit{spinning energy correlators}. These spinning correlators…

高能物理 - 唯象学 · 物理学 2025-12-22 Marc Riembau , Minho Son

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…

高能物理 - 唯象学 · 物理学 2020-12-30 Ahmed Ali , Gang Li , Wei Wang , Zhi-Peng Xing

We use a combination of perturbation theory, holography, supersymmetric localization, integrability, and numerical conformal bootstrap methods to constrain the energy-energy correlator in $\text{SU}(N_c)$ ${\mathcal N}=4$ SYM at finite…

高能物理 - 理论 · 物理学 2025-12-12 Ross Dempsey , Robin Karlsson , Silviu S. Pufu , Zahra Zahraee , Alexander Zhiboedov

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…

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…

高能物理 - 唯象学 · 物理学 2022-03-15 Duff Neill , Gherardo Vita , Ivan Vitev , 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,…

高能物理 - 唯象学 · 物理学 2025-11-19 Kyle Lee , Iain Stewart

We demonstrate the recently proposed nucleon energy-energy correlator (nucleon EEC) $f_{\rm EEC}(x,\theta)$ can unveil the gluon saturation in the small-$x$ regime in $eA$ collisions. The novelty of this probe is that it is fully inclusive…

高能物理 - 唯象学 · 物理学 2023-05-15 Hao-Yu Liu , Xiaohui Liu , Ji-Chen Pan , Feng Yuan , Hua Xing Zhu

We derive the expressions for the one-point energy correlator (OPEC) in deep inelastic scattering in the high-energy (small-$x$) limit within the Color Glass Condensate framework. The OPEC is computed as a function of the angle between the…

高能物理 - 唯象学 · 物理学 2026-03-04 Zhong-Bo Kang , Robert Kao , Meijian Li , Jani Penttala

Energy correlators measured inside high-energy jets at hadron colliders have recently been demonstrated to provide a new window into both perturbative and non-perturbative Quantum Chromodynamics. A number of the most interesting features of…

高能物理 - 唯象学 · 物理学 2023-08-01 Max Jaarsma , Yibei Li , Ian Moult , Wouter J. Waalewijn , Hua Xing Zhu