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Another look at the Landau gauge three-gluon vertex

Authors: Guilherme Catumba, Orlando Oliveira, Paulo J. Silva

Ref.: arXiv: 2111.10312 [hep-lat] (2021)

Abstract: We revisit the computation of the three-gluon vertex in the Landau gauge using lattice QCD simulations with large physical volumes of $\sim∼ (6.5 fm)^ 4 $ and $\sim∼ (8 fm)^ 4 $ and large statistical ensembles. For the kinematical configuration analysed, that is described by a unique form factor, an evaluation of the lattice artefacts is also performed. Particular attention is given to the low energy behaviour of vertex and its connection with evidence (or lack of it) of infrared ghost dominance.