Phenomenology of non-perturbative vertices in QCD

Date

Oct 16, 2014

Time

3:00 PM - 4:00 PM

Speaker

Richard Williams

Affiliation

Institut für Theoretische Physik, Justus-Liebig-Universität Gießen

Series

IKTP Institutsseminar

Language

en

Main Topic

Physik

Other Topics

Physik

Description

In particle physics, many objects and processes can be described by $n$-point Green's (or correlation) functions. They can be calculated using both Lattice QCD and other functional methods such as the Dyson--Schwinger equations employed here. Non-perturbative information regarding the propagation of quarks, the gluon self-interaction and the quark-gluon interaction can then be used in the determination of hadronic properties such as bound-state masses and form-factors. I discuss new developments in the Dyson--Schwinger/Bethe--Salpeter framework of so-called beyond Rainbow-Ladder calculations of both mesons and baryons. Further, I will discuss the relevance of the Green's function approach for the hadronic light-by-light scattering contribution to the anomalous magnetic moment of the muon.

Last modified: Oct 8, 2014, 11:29:17 AM