#### From gauge fields to observables: a bottom-up construction in Landau-gauge QCD and beyond

- Event time: 2:00pm
- Event date: 10th February 2010
- Speaker: Axel Maas (Karl-Franzens-University, Graz)
- Location: Lecture Theatre B, James Clerk Maxwell Building (JCMB) James Clerk Maxwell Building Peter Guthrie Tait Road Edinburgh EH9 3FD GB

### Event details

To treat non-perturbative and perturbative processes simultaneously in a single framework requires a description in terms of the elementary degrees of freedom.

The construction of such a framework for Yang-Mills theory (and beyond) is presented. It starts from a non-perturbatively completely gauge-fixed setting for the gluons fields. From this the correlation functions for the gluons and matter fields are obtained.

This yields, e.g., results for quantities like the analytic structure of the gluon propagator, exhibiting manifest confinement, the central matrix element for splitting functions, the finite-temperature phase transition temperature, and the hadron ground-state spectrum. Future developments will also be briefly presented.

The Particle Physics Theory seminar is a weekly series of talks reflecting the diverse interests of the group. Topics include analytic and numerical calculations based on the Standard Model of elementary particle physics, theories exploring new physics, as well as more formal developments in gauge theories and gravity..