Speaker
Description
The quark-gluon vertex is one of the basic building blocks of the strong interaction. It is an essential ingredient in functional approaches to nonperturbative quantum chromodynamics (QCD). In the literature, many studies of hadron phenomenology in the Schwinger-Dyson Equation framework have been carried out using the rainbow-ladder truncation, where the quark-gluon vertex is approximated by its tree-level structure, multiplied by an effective coupling which is assumed to depend only on the gluon momentum. While this approach has been successful in describing a range of properties of pseudoscalar and vector mesons, it has failed to provide a satisfactory description of other quantities including scalar and axial-vector mesons and the chiral transition temperature. In this presentation we will summarise the latest developments in quark-gluon vertex structure and its implications in hadron physics.
