QCD thermodynamics with an improved lattice action

Claude Bernard; James E. Hetrick; Thomas DeGrand; Matthew Wingate; Carleton DeTar; Steven Gottlieb; Urs M. Heller; Kari Rummukainen; Doug Toussaint; Robert L. Sugar

doi:10.1103/PhysRevD.56.5584

QCD thermodynamics with an improved lattice action

Claude Bernard, James E. Hetrick, Thomas DeGrand, Matthew Wingate, Carleton DeTar, Steven Gottlieb, Urs M. Heller, Kari Rummukainen, Doug Toussaint, Robert L. Sugar

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

We have investigated QCD with two flavors of degenerate fermions using the Symanzik-improvement program for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an [Formula presented] lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential. We find that this action reduces lattice artifacts present in thermodynamics with the standard Wilson (gauge and fermion) actions. However, comparisons between improved Wilson and Kogut-Susskind actions show some disagreement.

Original language	English (US)
Pages (from-to)	5584-5595
Number of pages	12
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	56
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.56.5584
State	Published - 1997
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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abstract = "We have investigated QCD with two flavors of degenerate fermions using the Symanzik-improvement program for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an [Formula presented] lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential. We find that this action reduces lattice artifacts present in thermodynamics with the standard Wilson (gauge and fermion) actions. However, comparisons between improved Wilson and Kogut-Susskind actions show some disagreement.",

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T1 - QCD thermodynamics with an improved lattice action

AU - Bernard, Claude

AU - Hetrick, James E.

AU - DeGrand, Thomas

AU - Wingate, Matthew

AU - DeTar, Carleton

AU - Gottlieb, Steven

AU - Heller, Urs M.

AU - Rummukainen, Kari

AU - Toussaint, Doug

AU - Sugar, Robert L.

PY - 1997

Y1 - 1997

N2 - We have investigated QCD with two flavors of degenerate fermions using the Symanzik-improvement program for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an [Formula presented] lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential. We find that this action reduces lattice artifacts present in thermodynamics with the standard Wilson (gauge and fermion) actions. However, comparisons between improved Wilson and Kogut-Susskind actions show some disagreement.

AB - We have investigated QCD with two flavors of degenerate fermions using the Symanzik-improvement program for both the gauge and fermion actions. Our study focuses on the deconfinement transition on an [Formula presented] lattice. Having located the thermal transition, we performed zero temperature simulations nearby in order to compute hadronic masses and the static quark potential. We find that this action reduces lattice artifacts present in thermodynamics with the standard Wilson (gauge and fermion) actions. However, comparisons between improved Wilson and Kogut-Susskind actions show some disagreement.

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EP - 5595

JO - Physical Review D

JF - Physical Review D

SN - 0556-2821

IS - 9

ER -

QCD thermodynamics with an improved lattice action

Abstract

ASJC Scopus subject areas

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