Infrared structure of $e^+e^- \to 3$ jets at NNLO - the $C_F^2$ contribution

Details Infrared structure of $e^+e^- \to 3$ jets at NNLO - the $C_F^2$ contribution Infrared structure of $e^+e^- \to 3$ jets at NNLO - the $C_F^2$ contribution

2004-07-02

arxiv.org/abs/hep-ph/0407023v1

Nucl.Phys.Proc.Suppl.135:97-101,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, Talk given at the 7th DESY Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Zinnowitz,

Scientific paper

10.1016/j.nuclphysbps.2004.09.04

We discuss the infrared structure of e+e- -> 2 and 3 jets at NNLO in QCD
perturbation theory and describe subtraction terms that render the separate
parton-level contributions finite. As a first result, we find that the NNLO
C_F^2 contribution to the first moment of the Thrust distribution <1-T> = -20.4
+/- 4.

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