On the leading OPE corrections to the ghost-gluon vertex and the Taylor theorem

Details On the leading OPE corrections to the ghost-gluon vertex and the Taylor theorem On the leading OPE corrections to the ghost-gluon vertex and the Taylor theorem

2011-09-17

arxiv.org/abs/1109.3803v3

JHEP 1112 (2011) 018

Physics

High Energy Physics

High Energy Physics - Phenomenology

Final version published in JHEP

Scientific paper

This brief note is devoted to a study of genuine non-perturbative corrections to the Landau gauge ghost-gluon vertex in terms of the non-vanishing dimension-two gluon condensate. We pay special attention to the kinematical limit which the bare vertex takes for its tree-level expression at any perturbative order, according to the well-known Taylor theorem. Based on our OPE analysis, we also present a simple model for the vertex, in acceptable agreement with lattice data.

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