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The Infrared Behavior of QCD Green's Functions
Analytic properties of the Landau gauge gluon and quark propagators
We explore the analytic structure of the gluon and quark propagators of Landau gauge QCD from numerical solutions of the coupled system of renormalized Dyson-Schwinger equations and from fits to…
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On Nucleon Electromagnetic Form Factors
Abstract.A Poincaré-covariant Faddeev equation, which describes baryons as composites of confined-quarks and -nonpointlike-diquarks, is solved to obtain masses and Faddeev amplitudes for the nucleon…
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The infrared behaviour of QCD Green's functions ☆: Confinement, dynamical symmetry breaking, and hadrons as relativistic bound states
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Three-gluon vertex in Landau gauge
We present the first Dyson–Schwinger calculation of the three-gluon vertex in Landau-gauge QCD in which its full covariant structure is back-coupled self-consistently. We truncate a Bose-symmetrized…
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QCD and strongly coupled gauge theories: challenges and perspectives
TLDR
In the course of the work, a perspective on the many research streams which flow into and out of QCD is offered, as well as a vision for future developments.
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Schwinger pair production in space- and time-dependent electric fields: Relating the Wigner formalism to quantum kinetic theory
The nonperturbative electron-positron pair production (Schwinger effect) is considered for space- and time-dependent electric fields E-vector(x-vector,t). Based on the Dirac-Heisenberg-Wigner…
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Pion loop contribution to the electromagnetic pion charge radius
There is a widely held misconception, based on a misrepresentation of the application of chiral perturbation theory, that the electromagnetic structure of the pion is dominated by the pion`s own…
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Baryons as relativistic three-quark bound states
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INFRARED BEHAVIOR OF GLUON AND GHOST PROPAGATORS IN LANDAU GAUGE QCD
A solvable systematic truncation scheme for the Dyson-Schwinger equations of Euclidean QCD in Landau gauge is presented. It implements the Slavnov-Taylor identities for the three-gluon and…
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