On propagators and three-point functions in Landau gauge QCD and QCD-like theories

TL;DR

This paper reviews recent advances in understanding propagators and three-point functions in Landau gauge QCD and similar theories, highlighting vertex properties, unquenching effects, and behavior with many light flavors.

Contribution

It provides new insights into the three-gluon and quark-gluon vertices, explores unquenching effects, and investigates propagator behavior in the conformal window for many light flavors.

Findings

Detailed analysis of three-gluon and quark-gluon vertices.

Evidence of propagator behavior in the conformal window.

Impact of unquenching on propagator properties.

Abstract

Recent progress in our studies of propagators and three-point functions in Landau gauge for QCD and QCD-like theories is presented. Special emphasis is put on the properties of the three-gluon vertex and the quark-gluon vertex. The effect of unquenching is investigated. Furthermore, an exploratory study for a large number of light flavours is described, from where clear evidence for the qualitative behaviour of propagators in the so-called conformal window can be extracted.