Quark loop effects with an improved staggered fermion action

C. Bernard, T. Burch, T. A. DeGrand, C. E. DeTar, Steven Gottlieb, U. M. Heller, K. Orginos, R. L. Sugar, William D Toussaint

Research output: Contribution to journalArticle

Abstract

We have been studying effects of dynamical quarks on various hadronic observables, using our recently formulated improvement for staggered fermions. To illustrate improvement, we show that the light hadron spectrum in the quenched approximation gives remarkably good scaling. We highlight three new results: (1) We find no apparent quark loop effects in the Edinburgh plot with 2+1 flavors of dynamical quarks at a = 0.14 fm. (2) We show that dynamical quarks modify the shape of the heavy quark potential. (3) We present results hinting at meson decay effects in light hadron spectroscopy.

Original languageEnglish (US)
Pages (from-to)237-241
Number of pages5
JournalNuclear Physics B (Proceedings Supplements)
Volume94
Issue number1-3
DOIs
StatePublished - Mar 2001

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fermions
quarks
mesons
plots
scaling
decay
approximation
spectroscopy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Quark loop effects with an improved staggered fermion action. / Bernard, C.; Burch, T.; DeGrand, T. A.; DeTar, C. E.; Gottlieb, Steven; Heller, U. M.; Orginos, K.; Sugar, R. L.; Toussaint, William D.

In: Nuclear Physics B (Proceedings Supplements), Vol. 94, No. 1-3, 03.2001, p. 237-241.

Research output: Contribution to journalArticle

Bernard, C, Burch, T, DeGrand, TA, DeTar, CE, Gottlieb, S, Heller, UM, Orginos, K, Sugar, RL & Toussaint, WD 2001, 'Quark loop effects with an improved staggered fermion action', Nuclear Physics B (Proceedings Supplements), vol. 94, no. 1-3, pp. 237-241. https://doi.org/10.1016/S0920-5632(01)00964-1
Bernard C, Burch T, DeGrand TA, DeTar CE, Gottlieb S, Heller UM et al. Quark loop effects with an improved staggered fermion action. Nuclear Physics B (Proceedings Supplements). 2001 Mar;94(1-3):237-241. https://doi.org/10.1016/S0920-5632(01)00964-1
Bernard, C. ; Burch, T. ; DeGrand, T. A. ; DeTar, C. E. ; Gottlieb, Steven ; Heller, U. M. ; Orginos, K. ; Sugar, R. L. ; Toussaint, William D. / Quark loop effects with an improved staggered fermion action. In: Nuclear Physics B (Proceedings Supplements). 2001 ; Vol. 94, No. 1-3. pp. 237-241.
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