81 citations · 394 across the 14 of their papers we have counts for
14 papers
On the zero-crossing of the three-gluon Green's function from lattice simulations
A. Athenodorou, Ph. Boucaud, F. De Soto +2
We report on some efforts recently made in order to gain a better understanding of some IR properties of the 3-point gluon Green's function by exploiting results from large-volume…
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…
Non-perturbative Power Corrections to Ghost and Gluon Propagators
Ph. Boucaud, J. P. Leroy, A. Le Yaouanc +5
We study the dominant non-perturbative power corrections to the ghost and gluon propagators in Landau gauge pure Yang-Mills theory using OPE and lattice simulations. The leading or…
Artefacts and <A2> power corrections : revisiting the MOM Z_psi and Z_V
Ph. Boucaud, F. de Soto, J. P. Leroy +5
We extract the power corrections due to the A^2 condensate in the overlap quark propagator (vector part of the inverse propagator Z_psi). The results are consistent with the previo…
apeNEXT: A multi-TFlops Computer for Simulations in Lattice Gauge Theory
F. Bodin, Ph. Boucaud, N. Cabibbo +19
We present the APE (Array Processor Experiment) project for the development of dedicated parallel computers for numerical simulations in lattice gauge theories. While APEmille is a…
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…
The APENEXT project
F. Bodin, P. Boucaud, N. Cabibbo +31
APENEXT is a new generation APE processor, optimized for LGT simulations. The project follows the basic ideas of previous APE machines and develops simple and cheap parallel system…
Status of APEmille
APE-Collaboration, :, A. Bartoloni +31
This paper presents the status of the APEmille project, which is essentially completed, as far as machine development and construction is concerned. Several large installations of…
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…
A Rigourous Treatment of the Lattice Renormalization Problem of F_B
Ph. Boucaud, J-P Leroy, J. Micheli +2
The -meson decay constant can be measured on the lattice using a expansion. To relate the physical quantity to Monte Carlo data one has to know the renormalization coeff…