Energy-energy correlation in electron-positron annihilation at NNLL+NNLO accuracy

Abstract

We present the computation of energy-energy correlation in $e^{+}{e}^{-}$ collisions in the back-to-back region at next-to-next-to-leading logarithmic accuracy matched with the next-to-next-to-leading order perturbative prediction. We study the effect of the fixed higher order corrections in a comparison of our results to LEP and SLC data. The next-to-next-to-leading order correction has a sizable impact on the extracted value of ${\alpha }_{\mathrm{S}}(M_Z)$, hence its inclusion is mandatory for a precise measurement of the strong coupling using energy-energy correlation.

24 pages, 7 figures and 1 table, published version

References in corpus (9)

• Drell-Yan production at small q_T, transverse parton distributions and the collinear anomaly
• Thrust at N^3LL with Power Corrections and a Precision Global Fit for alphas(mZ)
• A precise determination of alpha_s from LEP thrust data using effective field theory
• NNLO corrections to event shapes in $e^{+}{e}^{-}$ annihilation
• Resummation of heavy jet mass and comparison to LEP data
• Event shapes and jet rates in electron-positron annihilation at NNLO
• C-parameter Distribution at N${}^3$LL${}^{\prime }$ including Power Corrections
• An extensive survey of the estimation of uncertainties from missing higher orders in perturbative calculations
• Matching NLLA+NNLO for event shape distributions

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• NNLO QCD corrections to event shapes at the LHC
• Energy-energy correlation in hadronic Higgs decays: analytic results and phenomenology at NLO
• NNLO QCD corrections to event orientation in e+e- annihilation
• Analytic Computation of Three-point Energy Correlator in QCD