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arXiv · hep-lat/9608047

QCD Thermodynamics with Improved Actions

F. Karsch·B. Beinlich·J. Engels·R. Joswig·E. Laermann·A. Peikert·B. Petersson
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Abstract

The thermodynamics of the SU(3) gauge theory has been analyzed with tree level and tadpole improved Symanzik actions. A comparison with the continuum extrapolated results for the standard Wilson action shows that improved actions lead to a drastic reduction of finite cut-off effects already on lattices with temporal extent $N_τ=4$. Results for the pressure, the critical temperature, surface tension and latent heat are presented. First results for the thermodynamics of four-flavour QCD with an improved staggered action are also presented. They indicate similarly large improvement factors for bulk thermodynamics.

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F. Karsch, B. Beinlich, J. Engels, R. Joswig, E. Laermann, A. Peikert, B. Petersson. 1996-08-09. QCD Thermodynamics with Improved Actions. https://doi.org/10.1016/s0920-5632(96)00674-3

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