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Measurement of energy correlators inside jets and determination of the strong coupling $\alpha_\mathrm{S}(m_\mathrm{Z})$

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arxiv 2402.13864 v2 pith:RQBIOXPD submitted 2024-02-21 hep-ex

classification hep-ex
keywords mathrmalphaenergymeasuredstrongcorrelatorscouplingdistributions
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Energy correlators that describe energy-weighted distances between two or three particles in a jet are measured using an event sample of $\sqrt{s}$ = 13 TeV proton-proton collisions collected by the CMS experiment and corresponding to an integrated luminosity of 36.3 fb$^{-1}$. The measured distributions are consistent with the trends in the simulation that reveal two key features of the strong interaction: confinement and asymptotic freedom. By comparing the ratio of the measured three- and two-particle energy correlator distributions with theoretical calculations that resum collinear emissions at approximate next-to-next-to-leading logarithmic accuracy matched to a next-to-leading order calculation, the strong coupling is determined at the Z boson mass: $\alpha_\mathrm{S}(m_\mathrm{Z})$ = 0.1229 $^{+0.0040}_{-0.0050}$, the most precise $\alpha_\mathrm{S}(m_\mathrm{Z})$ value obtained using jet substructure observables.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Jet-by-jet energy correlators as stochastic probes of the parton-to-hadron transition

    hep-ph 2026-08 conditional novelty 6.0 of 10

    Per-jet fluctuations of binned energy-energy correlators show a smaller covariance trace and larger neighboring-shell correlations at hadron level than at parton level in Pythia and Herwig across all tested configurations.

  2. Benchmarking the Nearside Energy-Energy Correlators with Mellin Transform

    hep-ph 2026-07 conditional novelty 6.0 of 10

    A Mellin-transform framework with one fitted transition scale Λ describes nearside EECs in e+e− annihilation at NNLO+NNLL accuracy across ALEPH and earlier data.

  3. Energy-energy correlators inside single inclusive jets in heavy-ion collisions with CoLBT-hydro model

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    Updated CoLBT-hydro simulations with Q_M=2.0 GeV reproduce CMS in-jet EEC data, validate background subtraction, and show path-length and diffusion-wake effects.

  4. Quantum Scaling in Energy Correlators Beyond the Confinement Transition

    hep-ph 2025-07 conditional novelty 6.0 of 10

    In the post-confinement regime the small-angle energy-energy correlator scales with the collision energy through the J=5 DGLAP anomalous dimension, and the light-ray OPE coefficients are moments of the dihadron fragme...

  5. Factorization and Resummation for the Nearside Energy-Energy Correlators

    hep-ph 2025-07 conditional novelty 6.0 of 10

    A new all-order resummation formula in Fourier b_T-space for the nearside energy-energy correlator, derived from di-hadron fragmentation functions, matches fixed-order calculations and predicts a small-angle turnover.

  6. Regge trajectories, detectors, and distributions in the critical ${\rm O}(N)$ model

    hep-th 2025-06 conditional novelty 6.0 of 10

    In the critical O(N) model, renormalizing detector and distribution light-ray operators at leading order in 1/N yields Regge intercepts, the leading-twist splitting function, and a BFKL-type anomalous spin.

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