Quark-gluon vertex in general kinematics

Abstract

We compute the quark-gluon vertex in quenched lattice QCD, in the Landau gauge using an off-shell mean-field O(a)-improved fermion action. The Dirac-vector part of the vertex is computed for arbitrary kinematics. We find a substantial infrared enhancement of the interaction strength regardless of the kinematics.

5 pages, 6 figures. Improved figures, some minor modifications, version to be published in EPJC

References in corpus (15)

• Non-perturbative Propagators, Running Coupling and Dynamical Quark Mass of Landau gauge QCD
• Infrared Exponents and Running Coupling of SU(N) Yang-Mills Theories
• Infinite Volume and Continuum Limits of the Landau-Gauge Gluon Propagator
• Unquenched Gluon Propagator in Landau Gauge
• Towards the infrared limit in SU(3) Landau gauge lattice gluodynamics
• Nonperturbative structure of the quark-gluon vertex
• Propagators and running coupling from SU(2) lattice gauge theory
• Lattice quark propagator with staggered quarks in Landau and Laplacian gauges
• Quark-gluon vertex model and lattice-QCD data
• Quark-gluon vertex from lattice QCD
• Quenched QCD with O(a) improvement: I. The spectrum of light hadrons
• Quark-gluon vertex in arbitrary kinematics
• Confinement, DCSB, Bound States, and the Quark-Gluon Vertex
• Dynamical Mass Generation in Landau gauge QCD
• Dynamical chiral-symmetry breaking at T=0 and $T\ne 0$ in the Schwinger-Dyson equation with lattice QCD data

Cited by in corpus (49)

• The quark-gluon vertex in Landau gauge QCD: Its role in dynamical chiral symmetry breaking and quark confinement
• Three-point vertices in Landau-gauge Yang-Mills theory
• Gluonic three-point correlations in pure Landau gauge QCD
• Symmetry preserving truncations of the gap and Bethe-Salpeter equations
• Natural constraints on the gluon-quark vertex
• Fully coupled functional equations for the quark sector of QCD
• Hadronic unquenching effects in the quark propagator
• Beyond the rainbow: effects from pion back-coupling
• The quark-gluon vertex in Landau gauge bound-state studies
• Dynamical chiral symmetry breaking and the fermion--gauge-boson vertex
• On the Quark-Gluon Vertex and Quark-Ghost Kernel: combining Lattice Simulations with Dyson-Schwinger equations
• A new method for determining the quark-gluon vertex
• Chiral susceptibility and the scalar Ward identity
• Quark gap equation with non-abelian Ball-Chiu vertex
• Quark-gluon Vertex: A Perturbation Theory Primer and Beyond
• Chemical potential and the gap equation
• Quark spectral properties above Tc from Dyson-Schwinger equations
• On mass generation in Landau-gauge Yang-Mills theory
• Resolving the Bethe-Salpeter kernel
• Non-Abelian Ball-Chiu vertex for arbitrary Euclidean momenta
• Progress in vacuum susceptibilities and their applications to the chiral phase transition of QCD
• Ghost dynamics in the soft gluon limit
• Nonperturbative structure of the ghost-gluon kernel
• Quark-gluon vertex from the Landau gauge Curci-Ferrari model
• Transverse Takahashi Identities and Their Implications for Gauge Independent Dynamical Chiral Symmetry Breaking
• Quark-gluon vertex in arbitrary kinematics
• Quark-gluon vertex from Nf=2 lattice QCD
• Chiral Symmetry Breaking and Confinement Beyond Rainbow-Ladder Truncation
• Rho-meson, Bethe-Salpeter equation, and the far infrared
• The Quark-Gluon Vertex and the QCD Infrared Dynamics
• Symmetric point quartic gluon vertex and momentum subtraction
• Bethe-Salpeter studies of mesons beyond rainbow-ladder
• The impact of transverse Slavnov-Taylor identities on dynamical chiral symmetry breaking
• Vacuum Polarization and Dynamical Chiral Symmetry Breaking: Phase Diagram of QED with Four-Fermion Contact Interaction
• Constructing Scalar-Photon Three Point Vertex in Massless Quenched Scalar QED
• Insights into the quark-gluon vertex from lattice QCD and meson spectroscopy
• $H(4)$ tensor representations for the lattice Landau gauge gluon propagator and the estimation of lattice artefacts
• Three-point vertex functions in Yang-Mills Theory and QCD in Landau gauge
• Unraveling the organization of the QCD tapestry
• Hadronic bound-states in SU(2) from Dyson--Schwinger Equations
• Power corrections to symmetric point vertices in Gribov-Zwanziger theory
• MOM renormalization group functions in the maximal abelian gauge
• A comprehensive approach to the physics of mesons
• Chiral symmetry breaking for fermions charged under large Lie groups
• A window on infrared QCD with small expansion parameters
• The quenched SU(2) scalar-gluon vertex in minimal Landau gauge
• Spinning Pairs: Supporting ${}^3{P}_0$ Quark-Pair Creation from Landau Gauge Green's Functions
• Influence of light quark loops on the Wigner phase with Dyson-Schwinger equations approach
• A new method for computing the quark-gluon vertex