Thesis Collection
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Browsing by Author "Zafeiropoulos, S."
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Comment on “Lattice Gluon and Ghost Propagators, and the Strong Coupling in Pure SU (3) Yang-Mills Theory : Finite Lattice Spacing and Volume Effects
Boucaud, Ph.; Soto Borrero, Feliciano Carlos de; Rodríguez Quintero, José
; Zafeiropoulos, S. (American Physical Society, 2017)
The authors of [Phys. Rev. D 94, 014502 (2016)] reported about a careful analysis of the impact of lattice artifacts on the SU(3) gauge-field propagators. In particular, they found that the low-momentum behavior of the ... -
Gluon Green functions free of quantum fluctuations
Athenodorou, A.; Boucaud, Ph.; Soto Borrero, Feliciano Carlos de; Rodríguez Quintero, José; Zafeiropoulos, S. (Elsevier, 2016)
This letter reports on how the Wilson flow technique can efficaciously kill the short-distance quantum fluctuations of 2- and 3-gluon Green functions, remove the ΛQCDΛQCD scale and destroy the transition from the confining ... -
Gluon propagator and three-gluon vertex with dynamical quarks
Aguilar, A. C.; Soto, F. de; Ferreira, M. N.; Papavassiliou, J.; Rodríguez Quintero, José; Zafeiropoulos, S. (Springer Open, 2020-02)
We present a detailed analysis of the kinetic and mass terms associated with the Landau gauge gluon propagator in the presence of dynamical quarks, and a comprehensive dynamical study of certain special kinematic limits ... -
Instanton liquid properties from lattice QCD
Athenodorou, A.; Boucaud, Ph.; De Soto, F.; Rodríguez Quintero, José; Zafeiropoulos, S. (Springer Verlag, 2018-02)
We examined the instanton contribution to the QCD con gurations generated from lattice QCD for NF = 0, NF = 2 + 1 and NF = 2 + 1 + 1 dynamical quark avors from two di erent and complementary approaches. First via the ... -
On the zero crossing of the three-gluon vertex
Athenodorou, A.; Binosi, Daniele; Boucaud, Ph.; Soto Borrero, Feliciano Carlos de; Rodríguez Quintero, José; Zafeiropoulos, S. (Elsevier, 2016)
We report on new results on the infrared behavior of the three-gluon vertex in quenched Quantum Chromodynamics, obtained from large-volume lattice simulations. The main focus of our study is the appearance of the characteristic ... -
Reconstructing QCD spectral functions with Gaussian processes
Horak, Jan; Pawlowski, Jan M.; Rodríguez Quintero, José; Turnwald, Jonas; Urban, Julián M.; Wink, Nicolas; Zafeiropoulos, S. (American Physical Society, 2022-02)
We reconstruct ghost and gluon spectral functions in 2 þ 1 flavor QCD with Gaussian process regression. This framework allows us to largely suppress spurious oscillations and other common reconstruction artifacts by ... -
Refining the detection of the zero crossing for the three-gluon vertex in symmetric and asymmetric momentum subtraction schemes
Boucaud, Ph.; Soto Borrero, Feliciano Carlos de; Rodríguez Quintero, José; Zafeiropoulos, S. (American Physical Society, 2017)
This article reports on the detailed study of the three-gluon vertex in four-dimensional SU(3) Yang-Mills theory employing lattice simulations with large physical volumes and high statistics. A meticulous scrutiny of the ... -
Strong Running Coupling from the Gauge Sector of Domain Wall Lattice QCD with Physical Quark Masses
Zafeiropoulos, S.; Boucaud, Ph.; De Soto, F.; Rodríguez Quintero, José; Segovia, Jorge (American Physical Society, 2019-04)
We report on the first computation of the strong running coupling at the physical point (physical pion mass) from the ghost-gluon vertex, computed from lattice simulations with three flavors of domain wall fermions. We ... -
Three-gluon Green functions: low-momentum instanton dominance and zero-crossing
Rodríguez Quintero, José; Athenodorou, A.; Binosi, Daniele; Boucaud, Ph.; De Soto, F.; Papavassiliou, J.; Zafeiropoulos, S. (EDP Sciences, 2017-12)
We will report on a some e orts recently made in order to gain a better understanding of some IR properties of the 3-point gluon Green function by following both lattice and continuum QCD approaches.
