NNLO QCD corrections to event shape variables in electron positron annihilation

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Ridder, A. Gehrmann-De
Gehrmann, T.
Glover, E. W. N.
Heinrich, G.
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Abstract
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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(alpha_s^3) to three-jet production and related event shapes, and discuss their phenomenological impact.
Comment: Contributed to 2007 Europhysics Conference on High Energy Physics, Manchester, England 19-25 July 2007
Keywords
High Energy Physics - Phenomenology
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