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Improved actions for QCD thermodynamics on the lattice

Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of SU(N) gauge theories with three different O(a^2) and O(a^4) impr...

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Autores principales: Beinlich, B., Karsch, F., Laermann, E.
Lenguaje:eng
Publicado: 1995
Materias:
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(95)00681-8
http://cds.cern.ch/record/289846
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author Beinlich, B.
Karsch, F.
Laermann, E.
author_facet Beinlich, B.
Karsch, F.
Laermann, E.
author_sort Beinlich, B.
collection CERN
description Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of SU(N) gauge theories with three different O(a^2) and O(a^4) improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory (T\rightarrow \infty) and perform Monte Carlo simulations with improved SU(3) actions at non-zero g^2. Already on lattices with temporal extent N_\tau=4 we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.
id cern-289846
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 1995
record_format invenio
spelling cern-2898462023-03-14T18:54:36Zdoi:10.1016/0550-3213(95)00681-8http://cds.cern.ch/record/289846engBeinlich, B.Karsch, F.Laermann, E.Improved actions for QCD thermodynamics on the latticeParticle Physics - LatticeFinite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of SU(N) gauge theories with three different O(a^2) and O(a^4) improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory (T\rightarrow \infty) and perform Monte Carlo simulations with improved SU(3) actions at non-zero g^2. Already on lattices with temporal extent N_\tau=4 we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of $SU(N)$ gauge theories with three different $O(a~2)$ and $O(a~4)$ improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory ($T\rightarrow \infty$) and perform Monte Carlo simulations with improved $SU(3)$ actions at non-zero $g~2$. Already on lattices with temporal extent $N_\tau=4$ we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of $SU(N)$ gauge theories with three different $O(a~2)$ and $O(a~4)$ improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory ($T\rightarrow \infty$) and perform Monte Carlo simulations with improved $SU(3)$ actions at non-zero $g~2$. Already on lattices with temporal extent $N_\tau=4$ we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of $SU(N)$ gauge theories with three different $O(a~2)$ and $O(a~4)$ improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory ($T\rightarrow \infty$) and perform Monte Carlo simulations with improved $SU(3)$ actions at non-zero $g~2$. Already on lattices with temporal extent $N_\tau=4$ we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.Finite cut-off effects strongly influence the thermodynamics of lattice regularized QCD at high temperature in the standard Wilson formulation. We analyze the reduction of finite cut-off effects in formulations of the thermodynamics of SU(N) gauge theories with three different O ( a 2 ) and O ( a 2 ) improved actions. We calculate the energy density and pressure on finite lattices in leading order weak coupling perturbation theory ( T → ∞) and perform Monte Carlo simulations with improved SU (3) actions at non-zero g 2 . Already on lattices with temporal extent N τ = 4 we find a strong reduction of finite cut-off effects in the high temperature limit, which persists also down to temperatures a few times the deconfinement transition temperature.hep-lat/9510031CERN-TH-95-253BI-TP-95-33BI-TP-95-33CERN-TH-95-253oai:cds.cern.ch:2898461995-10-18
spellingShingle Particle Physics - Lattice
Beinlich, B.
Karsch, F.
Laermann, E.
Improved actions for QCD thermodynamics on the lattice
title Improved actions for QCD thermodynamics on the lattice
title_full Improved actions for QCD thermodynamics on the lattice
title_fullStr Improved actions for QCD thermodynamics on the lattice
title_full_unstemmed Improved actions for QCD thermodynamics on the lattice
title_short Improved actions for QCD thermodynamics on the lattice
title_sort improved actions for qcd thermodynamics on the lattice
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/0550-3213(95)00681-8
http://cds.cern.ch/record/289846
work_keys_str_mv AT beinlichb improvedactionsforqcdthermodynamicsonthelattice
AT karschf improvedactionsforqcdthermodynamicsonthelattice
AT laermanne improvedactionsforqcdthermodynamicsonthelattice