Speaker
Dr
Mario Mitter
(University of Heidelberg)
Description
We investigate SU(3)-Yang-Mills theory in a systematic vertex expansion scheme for the effective action. Particular focus is put on the dynamical creation of the gluon mass gap at non-perturbative momenta and the consistent treatment of quadratic divergences. The gluon and ghost propagators as well as the momentum-dependent ghost-gluon, three-gluon and four-gluon vertices are calculated self-consistently and the apparent convergence of the expansion scheme is discussed by comparing to corresponding lattice QCD results.
