Regular Article - Theoretical Physics
Energy–energy correlation in electron–positron annihilation at NNLL + NNLO accuracy
MTA-DE Particle Physics Research Group, University of Debrecen, PO Box 105, Debrecen, 4010, Hungary
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Accepted: 17 October 2017
Published online: 7 November 2017
We present the computation of energy–energy correlation in 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 ), hence its inclusion is mandatory for a precise measurement of the strong coupling using energy–energy correlation.
© The Author(s), 2017