Quenched hadron spectroscopy with improved staggered quark action

Claude Bernard, Tom Blum, Thomas A. DeGrand, Carleton DeTar, Steven Gottlieb, Urs M. Heller, James E. Hetrick, Craig McNeile, K. Rummukainen, Bob Sugar, William D Toussaint

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

We investigate light hadron spectroscopy with an improved quenched staggered quark action. We compare the results obtained with an improved gauge plus an improved quark action, an improved gauge plus standard quark action, and the standard gauge plus standard quark action. Most of the improvement in the spectroscopy results is due to the improved gauge sector. However, the improved quark action substantially reduces violations of Lorentz invariance, as evidenced by the meson dispersion relations.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume58
Issue number1
StatePublished - Jul 1 1998

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Quarks
Spectroscopy
quarks
Gauge
spectroscopy
Dispersion Relation
Mesons
invariance
Invariance
Sector
sectors
mesons
Standards

ASJC Scopus subject areas

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

Cite this

Quenched hadron spectroscopy with improved staggered quark action. / Bernard, Claude; Blum, Tom; DeGrand, Thomas A.; DeTar, Carleton; Gottlieb, Steven; Heller, Urs M.; Hetrick, James E.; McNeile, Craig; Rummukainen, K.; Sugar, Bob; Toussaint, William D.

In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 58, No. 1, 01.07.1998.

Research output: Contribution to journalArticle

Bernard, C, Blum, T, DeGrand, TA, DeTar, C, Gottlieb, S, Heller, UM, Hetrick, JE, McNeile, C, Rummukainen, K, Sugar, B & Toussaint, WD 1998, 'Quenched hadron spectroscopy with improved staggered quark action', Physical Review D - Particles, Fields, Gravitation and Cosmology, vol. 58, no. 1.
Bernard C, Blum T, DeGrand TA, DeTar C, Gottlieb S, Heller UM et al. Quenched hadron spectroscopy with improved staggered quark action. Physical Review D - Particles, Fields, Gravitation and Cosmology. 1998 Jul 1;58(1).
Bernard, Claude ; Blum, Tom ; DeGrand, Thomas A. ; DeTar, Carleton ; Gottlieb, Steven ; Heller, Urs M. ; Hetrick, James E. ; McNeile, Craig ; Rummukainen, K. ; Sugar, Bob ; Toussaint, William D. / Quenched hadron spectroscopy with improved staggered quark action. In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 1998 ; Vol. 58, No. 1.
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