Infrared behaviour and fixed points in Landau gauge QCD

Litim, Daniel F., Pawlowski, Jan M., Nedelko, Sergei and von Smekal, Lorenz (2004) Infrared behaviour and fixed points in Landau gauge QCD. Physical Review Letters, 93 (13). pp. 152002-152005. ISSN 1079-7114

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Abstract

We investigate the infrared behaviour of gluon and ghost propagators in Landau gauge QCD by means of an exact renormalisation group equation. We explain how, in general, the infrared momentum structure of Green functions can be extracted within this approach. An optimisation procedure is devised to remove residual regulator dependences. In Landau gauge QCD this framework is used to determine the infrared leading terms of the propagators. The results support the Kugo-Ojima confinement scenario. Possible extensions are discussed.

Item Type: Article
Keywords: Infrared, fixed points, Landau guage.
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Subjects: Q Science > QC Physics
Depositing User: Gemma Farrell
Date Deposited: 14 Mar 2008
Last Modified: 09 Mar 2017 21:24
URI: http://sro.sussex.ac.uk/id/eprint/1701
Google Scholar:185 Citations

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