101 citations · 337 across the 16 of their papers we have counts for
8 papers · 1 filter
Pion model with the Nakanishi Integral Representations
R. M. Moita, J. P. B. C. de Melo, T. Frederico +1
In the present work, we describe a model for the pion based on an analytic expression for the Bethe-Salpeter (BSA) amplitude, combined with some ingredients from Lattice QCD calcul…
Towards Minkowski space solutions of Dyson-Schwinger Equations through un-Wick rotation
Tobias Frederico, Dyana C. Duarte, Wayne de Paula +3
The fermion self-energy is calculated from the rainbow-ladder truncation of the Dyson-Schwinger equation (DSE) in quantum electrodynamics (QED) for spacelike momenta and in the com…
Exploring the Quark-Gluon Vertex with Slavnov-Taylor Identities and Lattice Simulations
Orlando Oliveira, T. Frederico, W. de Paula +1
The soft gluon limit of the longitudinal part of the quark-gluon vertex is studied by resorting to non-perturbative approaches to Quantum Chromodynamics (QCD). Based on a Slavnov-T…
The Quark-Gluon Vertex and the QCD Infrared Dynamics
O. Oliveira, W. de Paula, T. Frederico +1
The Dyson-Schwinger quark equation is solved for the quark-gluon vertex using the most recent lattice data available in the Landau gauge for the quark, gluon and ghost propagators,…
Fermionic bound states in Minkowski-space: Light-cone singularities and structure
W. de Paula, T. Frederico, G. Salmè +2
The Bethe-Salpeter equation for two-body bound system with spin constituent is addressed directly in the Minkowski space. In order to accomplish this aim we use the Nakanishi…
Linking Dynamical Gluon Mass to Chiral Symmetry Breaking via a QCD Low Energy Effective Field Theory
O. Oliveira, W. de Paula, T. Frederico
A low energy effective field theory model for QCD with a scalar color octet field is discussed. The model relates the gluon mass, the constituent quark masses and the quark condens…