Semiperturbative construction for the quark-gluon vertex
| dc.creator | Llanes-Estrada, Felipe J. | |
| dc.creator | Fischer, Christian S. | |
| dc.creator | Alkofer, Reinhard | |
| dc.date | 2004-07-29 | |
| dc.date.accessioned | 2026-07-07T03:52:58Z | |
| dc.date.available | 2026-07-07T03:52:58Z | |
| dc.description | We construct a model for the quark-gluon vertex of Landau gauge QCD. This is of twofold interest: on the one hand the quark-gluon interaction is at the heart of quark confinement, on the other hand it is a central element in hadron phenomenology based on QCD Greens functions. We employ the non-Abelian one-loop diagram in perturbation theory, which is of order Nc. As a novelty we replace the tree-level quark and gluon propagators in this diagram by their dressed counterparts solving the Dyson-Schwinger equations. The Nc-suppressed Abelian diagram is an order of magnitude smaller in various kinematics. We also study the effect of ghost dressing factors on the vertex obtaining a construction in good agreement with recent low-momentum lattice calculations. | |
| dc.description | 4 pages. Talk at QCD04, Montpellier July 5th 2004 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0407332 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0407332 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/43663 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Semiperturbative construction for the quark-gluon vertex | |
| dc.type | text |