81 citations · 394 across the 14 of their papers we have counts for
7 papers · 1 filter
A Ghost Story II: Ghosts, Gluons and the Gluon condensate beyond the IR of QCD
J. Rodríguez-Quintero, Ph. Boucaud, F. De Soto +4
Beyond the deep IR, the analysis of ghost and gluon propagators still keeps very interesting non-perturbative information. The Taylor-scheme coupling can be computed and applied to…
Divergent IR gluon propagator from Ward-Slavnov-Taylor identities?
Ph. Boucaud, J. P. Leroy, A. Le Yaouanc +5
We exploit the Ward-Slavnov-Taylor identity relating the 3-gluons to the ghost-gluon vertices to conclude either that the ghost dressing function is finite and non vanishing at zer…
Is the QCD ghost dressing function finite at zero momentum ?
Ph. Boucaud, Th. Brüntjen, J. P. Leroy +5
We show that a finite non-vanishing ghost dressing function at zero momentum satisfies the scaling properties of the ghost propagator Schwinger-Dyson equation. This kind of Schwing…
An Instanton Picture O.P.E. <A^2> Condensate?
Ph. Boucaud, F. De Soto, A. Donini +6
Gluon two- and three-point Green Functions computed in Landau gauge from the lattice show the existence of power corrections to the purely perturbative expressions, that can be exp…
Preliminary Calculation of from Green Functions with Dynamical Quarks
Ph. Boucaud, J. P. Leroy, H. Moutarde +4
We present preliminary results on the computation of the QCD running coupling constant in the scheme and Landau gauge with two flavours of dynamical Wilson quarks…
Lattice calculation of corrections to and of in the scheme
Ph. Boucaud, G. Burgio, F. Di Renzo +8
We report on very strong evidence of the occurrence of power terms in $\as(p)$, the QCD running coupling constant in the scheme, by analyzing non-perturbative mea…
Lattice calculation of in momentum scheme
Ph. Boucaud, J. P. Leroy, J. Micheli +2
We compute the flavorless running coupling constant of QCD from the three gluon vertex in the (regularisation independent) momentum subtraction renormalisation scheme. This is perf…