Tübingen 2003 – wissenschaftliches Programm

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HK: Physik der Hadronen und Kerne

HK 46: Theorie VII

HK 46.3: Vortrag

Donnerstag, 20. März 2003, 17:15–17:30, D

Gluon and ghost propagators at small temperatures in Landau gauge Yang-Mills theory — •Burghard Grüter¹, Axel Maas², Reinhard Alkofer¹, and Jochen Wambach² — ¹Institut für Theoretische Physik, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen — ²Institut für Kernphysik, TU Darmstadt, Schloßgartenstraße 9, 64289 Darmstadt

The infrared behaviour of the gluon and ghost propagators in Landau gauge Yang-Mills theory is investigated at non-vanishing temperatures.

We generalize a truncation scheme of Dyson-Schwinger equations for these propagators which has been applied successfully at zero temperature [1].

Hereby we focus on an extension of the corresponding numerical techniques for the confined phase, i.e. for small temperatures. The thus obtained first results will be presented and their implications for the same approach to the high temperature limit [2] will be discussed.
C. S. Fischer, R. Alkofer, H. Reinhardt, Phys. Rev. D65 094008(2002)
A. Maas, B. Grueter, R. Alkofer, J. Wambach, hep-ph/0210178
Supported by the European Graduate School Basel-Tuebingen (DFG contract GRK683) and BMBF under grant 06DA917.