80 citations · 735 across the 39 of their papers we have counts for
40 papers
Real poles with opposite-sign residues in the non-perturbative quark propagator
R. Alkofer, M. N. Ferreira, A. S. Miramontes +2
We investigate the analytic structure of the quark propagator in the Landau gauge by dynamically coupling the standard gap equation to the non-perturbative quark-gluon vertex. Empl…
Quark-gluon vertex in the complex plane
M. N. Ferreira, A. S. Miramontes, J. M. Morgado +1
In the present work we explore for the first time the general structure and properties of the nonperturbative quark-gluon vertex in the complex plane. Specifically, we focus on the…
Light mesons in the symmetric-vertex approximation
M. N. Ferreira, A. S. Miramontes, J. M. Morgado +1
We compute the spectrum of light mesons, composed by up, down, and strange quarks, using a symmetry-preserving approximation that permits the inclusion of fully-dressed quark-gluon…
Pions reloaded
M. N. Ferreira, A. S. Miramontes, J. M. Morgado +2
We present a novel version of the pion Bethe-Salpeter equation in the chiral limit, solved using as ingredients state-of-the-art QCD correlation functions. The constraints imposed…
Pion physics with dressed quark-gluon vertices
Mauricio N. Ferreira, Angel S. Miramontes, Jose M. Morgado +2
Recently, a theoretical framework was set up in [1], which allows for the symmetry-preserving inclusion of full quark-gluon vertices in the description of the meson dynamics. In th…
Physics of the gluon mass gap
Mauricio N. Ferreira, Joannis Papavassiliou, Jan M. Pawlowski +1
It has long been known that the gluon propagator in Landau-gauge QCD exhibits a mass gap; and its emergence has been ascribed to the action of the Schwinger mechanism in the gauge…
Gluon mass scale through the Schwinger mechanism
M. N. Ferreira, J. Papavassiliou
It has long been argued that the action of the Schwinger mechanism in the gauge sector of Quantum Chromodynamics leads to the generation of a gluon mass scale. Within this scenario…
Infrared properties of the quark-gluon vertex in general kinematics
A. C. Aguilar, M. N. Ferreira, G. T. Linhares +2
In the present work we determine the eight form factors of the transversely-projected quark-gluon vertex in general kinematics, in the context of Landau-gauge QCD with two degenera…
Nonperturbative four-gluon vertex in soft kinematics
A. C. Aguilar, F. De Soto, M. N. Ferreira +4
We present a nonperturbative study of the form factor associated with the projection of the full four-gluon vertex on its classical tensor, for a set of kinematics with one vanishi…
Nonlinear Schwinger mechanism in QCD, and Fredholm alternatives theorem
M. N. Ferreira, J. Papavassiliou
We present a novel implementation of the Schwinger mechanism in QCD, which fixes uniquely the scale of the effective gluon mass and streamlines considerably the procedure of multip…
Four-gluon vertex in collinear kinematics
A. C. Aguilar, M. N. Ferreira, J. Papavassiliou +1
To date, the four-gluon vertex is the least explored component of the QCD Lagrangian, mainly due to the vast proliferation of Lorentz and color structures required for its descript…
Schwinger displacement of the quark-gluon vertex
A. C. Aguilar, M . N. Ferreira, D. Ibañez +1
The action of the Schwinger mechanism in pure Yang-Mills theories endows gluons with an effective mass, and, at the same time, induces a measurable displacement to the Ward identit…
Schwinger poles of the three-gluon vertex: symmetry and dynamics
A. C. Aguilar, M. N. Ferreira, B. M. Oliveira +2
The implementation of the Schwinger mechanism endows gluons with a nonperturbative mass through the formation of special massless poles in the fundamental QCD vertices; due to thei…
Planar degeneracy of the three-gluon vertex
A. C. Aguilar, M. N. Ferreira, J. Papavassiliou +1
We present a detailed exploration of certain outstanding features of the transversely-projected three-gluon vertex, using the corresponding Schwinger-Dyson equation in conjunction…
Evidence of the Schwinger mechanism from lattice QCD
Mauricio Narciso Ferreira
In quantum chromodynamics (QCD), gluons acquire a mass scale through the action of the Schwinger mechanism. This mass emerges as a result of the dynamical formation of massless bou…
Gauge Sector Dynamics in QCD
M. N. Ferreira, J. Papavassiliou
The dynamics of the gauge sector of QCD give rise to nonperturbative phenomena that are crucial for the internal consistency of the theory; most notably, they account for the gener…
General kinematics of the three-gluon vertex from quenched lattice QCD
Fernando Pinto-Gómez, Feliciano de Soto, Mauricio N. Ferreira +2
We present new results for the transversely projected three-gluon vertex from quenched lattice QCD simulations using standard Wilson action. While previous works focused in some pa…
Patterns of gauge symmetry in the background field method
A. C. Aguilar, M. N. Ferreira, D. Ibañez +2
The correlation functions of Yang-Mills theories formulated in the background field method satisfy linear Slavnov-Taylor identities, which are naive generalizations of simple tree…
Schwinger mechanism for gluons from lattice QCD
A. C. Aguilar, F. De Soto, M. N. Ferreira +4
Continuum and lattice analyses have revealed the existence of a mass-scale in the gluon two-point Schwinger function. It has long been conjectured that this expresses the action of…
Pre-hydrodynamic evolution in large and small systems
Tiago Nunes da Silva, David D. Chinellato, André V. Giannini +6
We extend our previous investigation of the effects of pre-hydrodynamic evolution on final-state observables in heavy-ion collisions to smaller systems. We use a state-of-the-art h…
Schwinger-Dyson truncations in the all-soft limit: a case study
A. C. Aguilar, M. N. Ferreira, B. M. Oliveira +1
We study a special Schwinger-Dyson equation in the context of a pure SU(3) Yang-Mills theory, formulated in the background field method. Specifically, we consider the corresponding…
Lattice three-gluon vertex in extended kinematics: planar degeneracy
F. Pinto-Gómez, F. De Soto, M. N. Ferreira +2
We present novel results for the three-gluon vertex, obtained from an extensive quenched lattice simulation in the Landau gauge. The simulation evaluates the transversely projected…
Novel relaxation time approximation: a consistent calculation of transport coefficients with QCD-inspired relaxation times
Gabriel S. Rocha, Gabriel S. Denicol, Maurício N. Ferreira +1
We use a novel formulation of the relaxation time approximation to consistently calculate the bulk and shear viscosity coefficients using QCD-inspired energy-dependent relaxation t…
Assessing the ultracentral flow puzzle in hydrodynamic modeling of heavy-ion collisions
A. V. Giannini, M. N. Ferreira, M. Hippert +6
An outstanding problem in heavy-ion collisions is the inability for models to accurately describe ultra-central experimental flow data, despite that being precisely the regime wher…