Complete twist-decomposition for non-local QCD vector operators in x-space

2003/06/27 by Joerg Eilers Bodo Geyer Markus Lazar, Lazar, Joerg Eilers Bodo Geyer Markus
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/0306269

21 pages

arxiv created 2003/06/27 · arxiv updated 2009/11/30

Abstract

A general procedure is introduced allowing for the complete, infinite twist decomposition of non-local vector operators in QCD off the light-cone. The method is applied to the operators ψ(x) γ_μψ(-x) and ψ(x) σ_μν x^νψ(-x) as well as to their matrix elements thereby determining all power (resp. target mass) corrections being relevant for the related distribution amplitudes.

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