Speaker
Description
We present first-principle results for the 1PI correlation functions of two-flavour Landau-gauge QCD in the vacuum. These correlation functions carry the full information about the theory. They are obtained by solving their Functional Renormalisation Group equations in a systematic vertex expansion, aiming at apparent convergence. This work represents an indispensable and pivotal prerequisite for quantitative first-principle studies of the QCD phase diagram and the hadron spectrum within this framework.
In particular, we have computed the gluon, ghost, quark and scalar-pseudoscalar meson propagators, as well as gluon, ghost-gluon, quark-gluon, quark, quark-meson, and meson interactions. Our results stress the crucial importance of the correct semi-perturbative running of the different vertices in order to quantitatively describe the phenomena and scales of confinement and spontaneous chiral symmetry breaking without further phenomenological input. Furthermore, preliminary results for the correlation functions of pure Yang-Mills at finite temperature are presented.
