The Quark-Gluon Vertex in Landau gauge QCD

Understand

The coupled system of the quark-gluon vertex and quark propagator Dyson-Schwinger equations (DSEs) is investigated within Landau gauge QCD.

• The aim is to get a deeper insight into the mechanisms of quark confinement and dynamical chiral symmetry breaking and into a possible relation between these two phenomena.
• To this end an earlier study is extended by improving systematically on the truncations imposed on the quark-gluon vertex DSE.
• A clear infrared enhancement for all tensor structures of the quark-gluon vertex is obtained.