Infrared exponents and the running coupling of Landau gauge QCD and their relation to confinement
| dc.contributor.author | Alkofer, Reinhard | en |
| dc.contributor.author | Fischer, Christian S. | en |
| dc.contributor.author | von Smekal, Lorenz Johann Maria | en |
| dc.contributor.school | School of Chemistry and Physics : Physics and Mathematical Physics | en |
| dc.date.issued | 2003 | en |
| dc.description.abstract | The infrared behaviour of the gluon and ghost propagators in Landau gauge QCD is reviewed. The Kugo-Ojima confinement criterion and the Gribov-Zwanziger horizon condition result from quite general properties of the ghost Dyson-Schwinger equation. The numerical solutions for the gluon and ghost propagators obtained from a truncated set of Dyson-Schwinger equations provide an explicit example for the anticipated infrared behaviour. The results are in good agreement with corresponding lattice data obtained recently. The resulting running-coupling approaches a fix point in the infrared, α(0)=8.92/Nc. Two different fits for the scale dependence of the running coupling are given and discussed. | en |
| dc.identifier.citation | European Physical Journal A - Hadrons and Nuclei, 2003; 18 (2-3):261-264 | en |
| dc.identifier.doi | 10.1140/epja/i2002-10212-8 | en |
| dc.identifier.issn | 1434-6001 | en |
| dc.identifier.uri | http://hdl.handle.net/2440/37504 | |
| dc.language.iso | en | en |
| dc.publisher | Springer | en |
| dc.title | Infrared exponents and the running coupling of Landau gauge QCD and their relation to confinement | en |
| dc.type | Journal article | en |