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; D. Toussaint

doi:10.1016/S0920-5632(01)00964-1

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, D. Toussaint

Physics

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

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 language	English (US)
Pages (from-to)	237-241
Number of pages	5
Journal	Nuclear Physics B - Proceedings Supplements
Volume	94
Issue number	1-3
DOIs	https://doi.org/10.1016/S0920-5632(01)00964-1
State	Published - Mar 2001

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/S0920-5632(01)00964-1

Cite this

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title = "Quark loop effects with an improved staggered fermion action",

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.",

author = "C. Bernard and T. Burch and DeGrand, {T. A.} and DeTar, {C. E.} and Steven Gottlieb and Heller, {U. M.} and K. Orginos and Sugar, {R. L.} and D. Toussaint",

note = "Funding Information: This work is supported by the US National Science Foundation and Department of Energy and used computer resources at Los Alamos National Lab, NERSC, NCSA, NPACI and the University of Utah (CHPC).",

year = "2001",

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doi = "10.1016/S0920-5632(01)00964-1",

language = "English (US)",

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T1 - Quark loop effects with an improved staggered fermion action

AU - Bernard, C.

AU - Burch, T.

AU - DeGrand, T. A.

AU - DeTar, C. E.

AU - Gottlieb, Steven

AU - Heller, U. M.

AU - Orginos, K.

AU - Sugar, R. L.

AU - Toussaint, D.

N1 - Funding Information: This work is supported by the US National Science Foundation and Department of Energy and used computer resources at Los Alamos National Lab, NERSC, NCSA, NPACI and the University of Utah (CHPC).

PY - 2001/3

Y1 - 2001/3

N2 - 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.

AB - 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.

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JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - 1-3

ER -

Quark loop effects with an improved staggered fermion action

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