235 citations · 3.4k across the 102 of their papers we have counts for
54 papers · 1 filter
Instanton dominance over at low momenta from lattice QCD simulations at , and
Andreas Athenodorou, Philippe Boucaud, Feliciano de Soto +2
We report on an instanton-based analysis of the gluon Green functions in the Landau gauge for low momenta; in particular we use lattice results for in the symmetric momentum…
Instanton liquid properties from lattice QCD
A. Athenodorou, Ph. Boucaud, F. De Soto +2
We examined the instanton contribution to the QCD configurations generated from lattice QCD for , and dynamical quark flavors from two different and co…
Comment on "Lattice Gluon and Ghost Propagators, and the Strong Coupling in Pure Yang-Mills Theory: Finite Lattice Spacing and Volume Effects"
Ph. Boucaud, F. De Soto, J. Rodríguez-Quintero +1
The authors of ref. Phys.Rev. D94 (2016) no.1, 014502 reported about a careful analysis of the impact of lattice artifacts on the gauge-field propagators. In particular, th…
Refining the detection of the zero crossing for the symmetric and asymmetric three-gluon vertices
Ph. Boucaud, F. De Soto, J. Rodríguez-Quintero +1
This article reports on the detailed study of the three-gluon vertex in four-dimensional Yang-Mills theory employing lattice simulations with large physical volumes and hig…
A novel method for the physical scale setting on the lattice and its application to =4 simulations
B. Blossier, Ph. Boucaud, M. Brinet +5
This letter reports on a new procedure for the lattice spacing setting that takes advantage of the very precise determination of the strong coupling in Taylor scheme. Although it c…
Testing OPE for ghosts, gluons and
Benoit Blossier, Philippe Boucaud, Mariane Brinet +5
We present here our results on extracting Wilson coefficients from different quantities such as ghost and gluon propagators which are calculated by means of Lattice QCD. The result…
Lattice measurement of α_s with a realistic charm quark
B. Blossier, Ph. Boucaud, M. Brinet +6
We report on an estimate of α_s, renormalised in the MSbar scheme at the tau and Z^0 mass scales, by means of lattice QCD. Our major improvement compared to previous lattice calcul…
Ghost-gluon coupling, power corrections and from lattice QCD with a dynamical charm
B. Blossier, Ph. Boucaud, M. Brinet +7
This paper is a first report on the determination of $Λ_{\msbar}$ from lattice simulations with 2+1+1 twisted-mass dynamical flavours {\it via} the computation of the ghost-gluon c…
Vacuum expectation value of A^2 from LQCD
O. Pène, B. Blossier, Ph. Boucaud +10
We argue from LQCD that there is a non vanishing v.e.v of in QCD in the Landau gauge. We use operator product expansion to provide a clear definition of a…
from Lattice QCD: progresses and perspectives for a realistic full-QCD determination of the running Strong coupling
B. Blossier, Ph. Boucaud, F. De soto +4
Some very recent computations of from lattice simulations and of the running of the Strong coupling, obtained from the lattice ghost-gluon vertex,…
Ghost-gluon coupling, power corrections and from twisted-mass lattice QCD at
B. Blossier, Ph. Boucaud, F. De soto +4
A non-perturbative calculation of the ghost-gluon running QCD coupling constant is performed using twisted-mass dynamical fermions. The extraction of in the…
Kaon and D meson masses with N_f = 2+1+1 twisted mass lattice QCD
ETM Collaboration, Remi Baron, Philippe Boucaud +12
We discuss the computation of the kaon and D meson masses in the N_f = 2+1+1 twisted mass lattice QCD setup, where explicit heavy flavor and parity breaking occurs at finite lattic…
Ghost-gluon coupling, power corrections and from twisted-mass lattice QCD at Nf=2
B. Blossier, Ph. Boucaud, F. De soto +4
We present results concerning the non-perturbative evaluation of the ghost-gluon running QCD coupling constant from twisted-mass lattice calculations. A novel method for ca…
Quark pseudoscalar vertex and quark mass function with clover fermions : spontaneous symmetry breaking, OPE, symmetry restoration at small volume
Ph. Boucaud, J. P. Leroy, A. Le Yaouanc +3
We study the quark mass function on hypercubic lattices, in a large range of physical volumes and cutoffs. To avoid the very large Wilson term artefact, we exploit the relation bet…
Light quark masses and pseudoscalar decay constants from Nf=2 Lattice QCD with twisted mass fermions
B. Blossier, Ph. Boucaud, P. Dimopoulos +15
We present the results of a lattice QCD calculation of the average up-down and strange quark masses and of the light meson pseudoscalar decay constants with Nf=2 dynamical fermions…
Dynamical Twisted Mass Fermions with Light Quarks
Ph. Boucaud, P. Dimopoulos, F. Farchioni +19
We present results of dynamical simulations with 2 flavours of degenerate Wilson twisted mass quarks at maximal twist in the range of pseudo scalar masses from 300 to 550 MeV. The…
Two body scattering length of Yukawa model on a lattice
F. De Soto, J. Carbonell, C. Roiesnel +3
The extraction of scattering parameters from Euclidean simulations of a Yukawa model in a finite volume with periodic boundary conditions is analyzed both in non relativistic quant…
Yukawa model on a lattice: two body states
F. De Soto, J. Carbonell, C. Roiesnel +3
We present first results of the solutions of the Yukawa model as a Quantum Field Theory (QFT) solved non perturbatively with the help of lattice calculations. In particular we will…
Exploring twisted mass Lattice QCD with the Clover term
D. Becirevic, Ph. Boucaud, V. Lubicz +4
It has been shown that in the twisted mass formulation of Lattice QCD at maximal twist large cutoff effects are generated when the quark mass becomes of O(a Lambda_QCD^2). In gener…
Short comment about the lattice gluon propagator at vanishing momentum
Ph. Boucaud, Th. Brüntjen, J. P. Leroy +6
We argue that all evidences point towards a finite non-vanishing zero momentum renormalised lattice gluon propagator in the infinite volume limit. We argue that different simulatio…
Nuclear models on a lattice
F. De Soto, J. Carbonell, C. Roiesnel +3
We present the first results of a quantum field approach to nuclear models obtained by lattice techniques. Renormalization effects for fermion mass and coupling constant in case of…
Pionic couplings (g^ and g~) in the static heavy quark limit
D. Becirevic, B. Blossier, Ph. Boucaud +3
The couplings between the soft pion and the doublet of heavy-light mesons are basic parameters of the ChPT approach to the heavy-light systems. We compute the unquenched (Nf=2) val…
Non-perturbatively renormalised light quark masses from a lattice simulation with N_f=2
D. Becirevic, B. Blossier, Ph. Boucaud +5
We present results for the light quark masses obtained from a lattice QCD simulation with N_f=2 degenerate Wilson dynamical quark flavours. The sea quark masses of our lattice, of…
B_s-\bar{B_s} mixing with a chiral light quark action
D. Becirevic, B. Blossier, Ph. Boucaud +3
We study the mixing amplitude in Standard Model by computing the relevant hadronic matrix element in the static limit of lattice HQET with the Neuberger light q…