First results on e^+e^- -> 3 jets at NNLO

Authors :: Ridder, A. Gehrmann-De
Gehrmann, T.
Glover, E. W. N.
Heinrich, G.
Publication Year :: 2007
Publisher :: arXiv, 2007.
Abstract: 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 (${\cal O}(��_s^3)$) to three-jet production and related event shapes, and discuss their phenomenological impact.<br />5 pages, LaTeX, to appear in the proceedings of the International Linear Collider Workshop LCWS07, Hamburg, 2007