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The back-to-back region in e^+e^- energy--energy correlation
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We consider the back-to-back region in the energy--energy correlation in e^+e^- collisions. We present the explicit expression of the O(as^2) logarithmically enhanced contributions up to next-to-next-to-leading logarithmic accuracy. We study the impact of the results in a detailed comparison with precise LEP and SLC data. We find that, when hadronization effects are taken into account as is customarily done in QCD analysis in e^+e^- annihilations, the extracted value of as(M_Z) is in good agreement with the current world average.
Forward citations
Cited by 13 Pith papers
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Precision $e^+e^-$ Hemisphere Masses in the Dijet Region with Power Corrections
N3LL' resummation for heavy jet and dihemisphere masses in the dijet region, with a new claim that heavy jet mass moments require an extra non-perturbative parameter at order 1/Q.
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Energy Correlators Resolving Proton Spin
The work establishes a correspondence between spin-dependent energy correlators and polarized TMDs/NECs using SCET, yielding N3LL/N2LL predictions for correlation patterns in current and target fragmentation regions.
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Holographic Energy Correlators for Soft Walls
Linear shockwave solutions exist in any warped holographic background, and the resulting two-point energy correlator differs between linear-dilaton and quadratic-dilaton confining models.
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The Three-Point Energy Correlator in the Coplanar Limit
A new tau_p projection makes the coplanar limit of the three-point energy correlator a TMD-factorized trijet observable, resummed to N3LL, the first trijet event shape at this order.
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Benchmarking the Nearside Energy-Energy Correlators with Mellin Transform
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.
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HDSense: An efficient method for ranking observable sensitivity
HDSense ranks observable subsets by adding per-observable Fisher information and penalizing overlap, picking near-optimal sets for Pythia hadronization parameters in tested cases.
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Energy correlators in four-dimensional gravity
Gravitational energy correlators in four dimensions are computed at one loop, shown to be infrared-finite, and resummed in the back-to-back limit by soft-graviton exponentiation.
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Factorization and Resummation for the Nearside Energy-Energy Correlators
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.
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Heavy quark mass effects in the Energy-Energy Correlation in the back-to-back region
Massive quark Sudakov resummation for e+e- energy-energy correlations is extended to NNLL accuracy, and the NLL dead cone angle is enlarged by sqrt(e).
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Energy-Energy Correlator for jet production in $pp$ and $pA$ collisions
A TMD-inspired non-perturbative model plus leading-logarithm perturbative evolution describes the full angular energy-energy correlator in pp and pA jet production and attributes the observed pA suppression to medium-...
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Transverse Parton Distribution and Fragmentation Functions at NNLO: the Quark Case
The authors compute NNLO quark transverse momentum dependent PDFs and fragmentation functions with the exponential regulator, and extract the two-loop quark jet function needed for N3LL energy-energy correlator resummation.
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Factorization of the Energy-Energy Correlation in the two-jet limit in the massive case
Authors introduce a partial two-jet event fraction for massive-quark EEC and an improved factorization scheme with χ-dependent coefficient function.
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Particle Correlations in Jets
Subtracting the product of single-particle energy flows from the energy-energy correlator isolates genuine two-particle correlations in jets, as demonstrated with PYTHIA.
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