NNLO QCD corrections to event shape variables in electron positron annihilation
Abstract
Precision studies of QCD at electron-positron colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to next-to-next-to-leading order (NNLO) in QCD are needed for a reliable interpretation of the data. We report the first calculation of NNLO corrections O(alphas3) to three-jet production and related event shapes, and discuss their phenomenological impact.
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