Precise determination of αS() from a global fit of energy-energy correlations to NNLO+NNLL predictions
University of Debrecen, Hungary
2 MPI für Physik, Munich, Germany
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Published online: 19 April 2019
We present a determination of the strong coupling constant αS() using a global fit of theory predictions in next-to-next-next-leading-order (NNLO) combined with resummed predictions at the next-to-next-leading-log level (NNLL) . The predictions are compared to distributions of energy-energy correlations measured in e+e−annihilation to hadronic final states by experiments at the e+e−colliders LEP, PETRA, TRISTAN and PEP. The predictions are corrected for hadronisation eﬀects using the modern generator programs Sherpa 2.2.4 and Herwig 7.1.1.
© The Authors, published by EDP Sciences, 2019
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