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(alpha_s^3) to three-jet production and related event shapes, and discuss their phenomenological impact.

Contributed to 2007 Europhysics Conference on High Energy Physics, Manchester, England 19-25 July 2007

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• Four jet event shapes in electron-positron annihilation
• QCD Corrections to Four-jet Production and Three-jet Structure in e+ e- annihilation
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Cited by in corpus (1)

• Full One-loop Electro-Weak Corrections to Three-jet Observables at the Z pole and Beyond