Remarks on the determination of the Landau gauge OPE for the asymmetric three gluon vertex

Abstract

We compute a compact operator product expansion ~OPE! formula describing power corrections to the perturbative expression for the asymmetric momentum subtraction–(gMOM-)renormalized running coupling constant up to the leading logarithm. By the use of a phenomenological hypothesis leading to the factorization of the condensates through a perturbative vacuum insertion, the only relevant condensate in the game is ^A2&. The validity of the OPE formula is tested by searching for a good-quality coherent description of previous lattice evaluations of thegMOM-renormalized gluon propagator and running coupling.