Infrared structure of e+e−→3 jets at NNLO - the CF2 contribution

2004/07/02 by A. Gehrmann–De Ridder, A. Gehrmann-De Ridder, T. Gehrmann +2
Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Distribution (mathematics) #High-Energy Particle Collisions Research #Infrared #Moment (physics) #Particle physics theoretical and experimental studies #Perturbation (astronomy) #Perturbation theory (quantum mechanics) #Quantum chromodynamics #hep-ph

paper · pdf · doi:10.1016/j.nuclphysbps.2004.09.042

published as Nucl.Phys.Proc.Suppl.135:97-101,2004 · 5 pages, Talk given at the 7th DESY Workshop on Elementary Particle Theory: Loops and Legs in Quantum Field Theory, Zinnowitz, Germany April 2004

arxiv created 2004/07/02 · openalex publication_date 2004/10/01 · arxiv updated 2009/12/01 · openalex created_date 2019/06/27 · openalex updated_date 2026/08/05

Abstract

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_F² contribution to the first moment of the Thrust distribution <1-T> = -20.4 +/- 4.

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