NNLO QCD corrections to event shape variables in electron positron annihilation
نویسندگان
چکیده
Precision studies of QCD at ee colliders are based on measurements of event shapes and jet rates. To match the high experimental accuracy, theoretical predictions to nextto-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(α s )) to three-jet production and related event shapes, and discuss their phenomenological impact.
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تاریخ انتشار 2008