NNLO QCD corrections to event shape variables in electron positron annihilation

NNLO QCD corrections to event shape variables in electron positron annihilation

Precision studies of QCD at e+e− 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...

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Veröffentlicht in:Journal of physics. Conference series 2008-05, Vol.110 (2), p.022014
Hauptverfasser: Ridder, A G-D, Gehrmann, T, Glover, E W N, Heinrich, G
Format: Artikel
Sprache:eng
Schlagworte:
Physics
Positron annihilation
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Zusammenfassung:Precision studies of QCD at e+e− 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(α3s)) to three-jet production and related event shapes, and discuss their phenomenological impact.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/110/2/022014