Nonperturbative gluonic three-point correlations

20 May 2014, 16:30
2h
spectrum (darmstadtium)

spectrum

darmstadtium

Board: L-06
Poster New Theoretical Developments Poster session

Speaker

Dr Markus Huber (KFU Graz)

Description

The correlation functions of QCD are the fundamental building blocks for hadron phenomenology and strong-interaction matter studies based on functional continuum methods. A better understanding of these correlations from first principles constrains the input of more phenomenological studies. Here, we report on the first self-consistent solution of the Dyson-Schwinger equation (DSE) for the three-gluon vertex [1]. Based on our earlier results for the propagators [2] which match data from lattice Monte-Carlo simulations, we obtain kinematically complete results for the three gluon vertex that are in very good agreement with available lattice data likewise. Feeding these results back into the propagator DSEs allows us to assess previously used model input and approximations. The full iterative solution to the coupled DSEs of pure Landau gauge QCD without quarks, which now for the first time dynamically includes the complete set of three-point vertex functions, then provides encouraging evidence of the convergence of this type of vertex expansion for QCD. [1] Blum, Huber, Mitter, von Smekal, arXiv:1401.0713 [hep-ph] [2] Huber, von Smekal, JHEP 1304 (2013) 149
On behalf of collaboration: None

Primary authors

Mr Adrian Blum (Technische Universität Darmstadt) Prof. Lorenz von Smekal (JLU Giessen) Dr Mario Mitter (Universität Heidelberg) Dr Markus Huber (KFU Graz)

Presentation Materials