Measuring infrared contributions to the QCD pressure

For the pressure (or free energy) of QCD, four-dimensional (4d) lattice data is available at zero baryon density up to a few times the critical temperature $T_c$. Perturbation theory, on the other hand, has serious convergence problems even at very high temperatures. In a combined analytical and thr...

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Detalles Bibliográficos
Autores principales: Kajantie, K., Laine, M., Rummukainen, K., Schroder, Y.
Lenguaje:eng
Publicado: 2001
Materias:
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.1016/S0920-5632(01)01768-6
http://cds.cern.ch/record/523138
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author Kajantie, K.
Laine, M.
Rummukainen, K.
Schroder, Y.
author_facet Kajantie, K.
Laine, M.
Rummukainen, K.
Schroder, Y.
author_sort Kajantie, K.
collection CERN
description For the pressure (or free energy) of QCD, four-dimensional (4d) lattice data is available at zero baryon density up to a few times the critical temperature $T_c$. Perturbation theory, on the other hand, has serious convergence problems even at very high temperatures. In a combined analytical and three-dimensional (3d) lattice method, we show that it is possible to compute the QCD pressure from about $2 T_c$ to infinity. The numerical accuracy is good enough to resolve in principle, e.g., logarithmic contributions related to 4-loop perturbation theory.
id cern-523138
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2001
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spelling cern-5231382023-03-14T19:54:27Zdoi:10.1016/S0920-5632(01)01768-6http://cds.cern.ch/record/523138engKajantie, K.Laine, M.Rummukainen, K.Schroder, Y.Measuring infrared contributions to the QCD pressureParticle Physics - LatticeFor the pressure (or free energy) of QCD, four-dimensional (4d) lattice data is available at zero baryon density up to a few times the critical temperature $T_c$. Perturbation theory, on the other hand, has serious convergence problems even at very high temperatures. In a combined analytical and three-dimensional (3d) lattice method, we show that it is possible to compute the QCD pressure from about $2 T_c$ to infinity. The numerical accuracy is good enough to resolve in principle, e.g., logarithmic contributions related to 4-loop perturbation theory.For the pressure (or free energy) of QCD, four-dimensional (4d) lattice data is available at zero baryon density up to a few times the critical temperature $T_c$. Perturbation theory, on the other hand, has serious convergence problems even at very high temperatures. In a combined analytical and three-dimensional (3d) lattice method, we show that it is possible to compute the QCD pressure from about $2 T_c$ to infinity. The numerical accuracy is good enough to resolve in principle, e.g., logarithmic contributions related to 4-loop perturbation theory.hep-lat/0110122NORDITA-2001-45-HEoai:cds.cern.ch:5231382001-10-15
spellingShingle Particle Physics - Lattice
Kajantie, K.
Laine, M.
Rummukainen, K.
Schroder, Y.
Measuring infrared contributions to the QCD pressure
title Measuring infrared contributions to the QCD pressure
title_full Measuring infrared contributions to the QCD pressure
title_fullStr Measuring infrared contributions to the QCD pressure
title_full_unstemmed Measuring infrared contributions to the QCD pressure
title_short Measuring infrared contributions to the QCD pressure
title_sort measuring infrared contributions to the qcd pressure
topic Particle Physics - Lattice
url https://dx.doi.org/10.1016/S0920-5632(01)01768-6
http://cds.cern.ch/record/523138
work_keys_str_mv AT kajantiek measuringinfraredcontributionstotheqcdpressure
AT lainem measuringinfraredcontributionstotheqcdpressure
AT rummukainenk measuringinfraredcontributionstotheqcdpressure
AT schrodery measuringinfraredcontributionstotheqcdpressure

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