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, William D Toussaint, Robert L. Sugar

Research output: Contribution to journalArticle

42 Citations (Scopus)

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 Nt = 4 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, comparison between improved Wilson and Kogut-Susskind actions show some disagreement.

Original languageEnglish (US)
Pages (from-to)5584-5595
Number of pages12
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume56
Issue number9
StatePublished - Nov 1 1997

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Thermodynamics
quantum chromodynamics
fermions
Fermions
thermodynamics
Gauge
artifacts
quarks
Quarks
Zero
simulation
Simulation
temperature

ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Bernard, C., Hetrick, J. E., DeGrand, T., Wingate, M., DeTar, C., Gottlieb, S., ... Sugar, R. L. (1997). QCD thermodynamics with an improved lattice action. Physical Review D - Particles, Fields, Gravitation and Cosmology, 56(9), 5584-5595.

QCD thermodynamics with an improved lattice action. / Bernard, Claude; Hetrick, James E.; DeGrand, Thomas; Wingate, Matthew; DeTar, Carleton; Gottlieb, Steven; Heller, Urs M.; Rummukainen, Kari; Toussaint, William D; Sugar, Robert L.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 56, No. 9, 01.11.1997, p. 5584-5595.

Research output: Contribution to journalArticle

Bernard, C, Hetrick, JE, DeGrand, T, Wingate, M, DeTar, C, Gottlieb, S, Heller, UM, Rummukainen, K, Toussaint, WD & Sugar, RL 1997, 'QCD thermodynamics with an improved lattice action', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 56, no. 9, pp. 5584-5595.
Bernard C, Hetrick JE, DeGrand T, Wingate M, DeTar C, Gottlieb S et al. QCD thermodynamics with an improved lattice action. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 Nov 1;56(9):5584-5595.
Bernard, Claude ; Hetrick, James E. ; DeGrand, Thomas ; Wingate, Matthew ; DeTar, Carleton ; Gottlieb, Steven ; Heller, Urs M. ; Rummukainen, Kari ; Toussaint, William D ; Sugar, Robert L. / QCD thermodynamics with an improved lattice action. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1997 ; Vol. 56, No. 9. pp. 5584-5595.
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