Alkofer, Reinhard ; Fischer, Christian S. ; Llanes-Estrada, F. (2007)
Dynamically induced scalar quark confinement : A link between chiral symmtry breaking and confinement.
25th International Symposium on Lattice Field Theory (Lattice 2007). Regensburg (30.07.2007-04.08.2007)
doi: 10.22323/1.042.0286
Konferenzveröffentlichung, Bibliographie
Kurzbeschreibung (Abstract)
Employing functional approaches the infrared behaviour of Landau gauge QCD vertex functions is investigated. Results for the ghost-gluon, three-gluon and quark-gluon vertex functions are presented. As can be analytically shown a linear rising potential between heavy quarks is generated by infrared singularities in the dressed quark-gluon vertex. The selfconsistent mechanism that generates these singularities implies the existence of scalar Dirac amplitudes of the full vertex and the quark propagator. These amplitudes can only be present when chiral symmetry is broken, either explicitly or dynamically. The corresponding relations thus constitute a novel mechanism that directly links chiral symmetry breaking with confinement.
| Typ des Eintrags: | Konferenzveröffentlichung |
|---|---|
| Erschienen: | 2007 |
| Autor(en): | Alkofer, Reinhard ; Fischer, Christian S. ; Llanes-Estrada, F. |
| Art des Eintrags: | Bibliographie |
| Titel: | Dynamically induced scalar quark confinement : A link between chiral symmtry breaking and confinement |
| Sprache: | Englisch |
| Publikationsjahr: | 2007 |
| Buchtitel: | PoS Lattice 2007 |
| Veranstaltungstitel: | 25th International Symposium on Lattice Field Theory (Lattice 2007) |
| Veranstaltungsort: | Regensburg |
| Veranstaltungsdatum: | 30.07.2007-04.08.2007 |
| DOI: | 10.22323/1.042.0286 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | Employing functional approaches the infrared behaviour of Landau gauge QCD vertex functions is investigated. Results for the ghost-gluon, three-gluon and quark-gluon vertex functions are presented. As can be analytically shown a linear rising potential between heavy quarks is generated by infrared singularities in the dressed quark-gluon vertex. The selfconsistent mechanism that generates these singularities implies the existence of scalar Dirac amplitudes of the full vertex and the quark propagator. These amplitudes can only be present when chiral symmetry is broken, either explicitly or dynamically. The corresponding relations thus constitute a novel mechanism that directly links chiral symmetry breaking with confinement. |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik |
| Hinterlegungsdatum: | 20 Nov 2008 08:27 |
| Letzte Änderung: | 06 Nov 2024 11:29 |
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