Dynamical mass generation in Landau gauge QCD
We summarise results on the infrared behaviour of Landau gauge QCD from the Green's functions approach and lattice calculations. Approximate, nonperturbative solutions for the ghost, gluon and quark propagators as well as first results for the quark-gluon vertex from a coupled set of Dyson-Schw...
| Autores: | , , |
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| Formato: | artículo |
| Fecha de publicación: | 2005 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/50944 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/50944 |
| Access Level: | acceso abierto |
| Palavra-chave: | 53 Dyson-Schwinger Equations Infrared Behavior Confinement Exponents Física (Física) 22 Física |
| Resumo: | We summarise results on the infrared behaviour of Landau gauge QCD from the Green's functions approach and lattice calculations. Approximate, nonperturbative solutions for the ghost, gluon and quark propagators as well as first results for the quark-gluon vertex from a coupled set of Dyson-Schwinger equations are compared to quenched and unquenched lattice results. Almost quantitative agreement is found for all three propagators. Similar effects of unquenching are found in both approaches. The dynamically generated quark masses are close to 'phenomenological' values. First results for the quark-gluon vertex indicate a complex tenser structure of the non-perturbative quark gluon interaction. |
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