FB for various actions: Approaching the continuum limit with dynamical fermions

C. Bernard; S. Datta; C. DeTar; S. Gottlieb; U. M. Heller; J. Hetrick; C. McNeile; K. Orginos; R. Sugar; D. Toussaint

doi:10.1016/S0920-5632(01)00923-9

F_B for various actions: Approaching the continuum limit with dynamical fermions

C. Bernard, S. Datta, C. DeTar, S. Gottlieb, U. M. Heller, J. Hetrick, C. McNeile, K. Orginos, R. Sugar, D. Toussaint

Physics

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23 Scopus citations

Abstract

We present results for pseudoscalar decay constants of heavy-light mesons using both quenched and N_f = 2 dynamical fermion configurations. A variety of fermion actions is investigated: Wilson, nonperturbative clover, and fat-link clover. For heavy quarks the Fermilab formalism is applied. In the quenched approximation, results with the nonperturbatively improved clover action of the Alpha collaboration allow us to study the systematic error of the continuum extrapolation from the Wilson action. In addition, we use quenched configurations to explore the effects of fattening. The lessons from the quenched analyses are then applied to data with dynamical fermions, where both Wilson and fat-link clover actions have been used. This allows us to attempt a continuum extrapolation of the dynamical results.

Original language	English (US)
Pages (from-to)	346-349
Number of pages	4
Journal	Nuclear Physics B - Proceedings Supplements
Volume	94
Issue number	1-3
DOIs	https://doi.org/10.1016/S0920-5632(01)00923-9
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)00923-9

Cite this

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title = "FB for various actions: Approaching the continuum limit with dynamical fermions",

abstract = "We present results for pseudoscalar decay constants of heavy-light mesons using both quenched and Nf = 2 dynamical fermion configurations. A variety of fermion actions is investigated: Wilson, nonperturbative clover, and fat-link clover. For heavy quarks the Fermilab formalism is applied. In the quenched approximation, results with the nonperturbatively improved clover action of the Alpha collaboration allow us to study the systematic error of the continuum extrapolation from the Wilson action. In addition, we use quenched configurations to explore the effects of fattening. The lessons from the quenched analyses are then applied to data with dynamical fermions, where both Wilson and fat-link clover actions have been used. This allows us to attempt a continuum extrapolation of the dynamical results.",

author = "C. Bernard and S. Datta and C. DeTar and S. Gottlieb and Heller, {U. M.} and J. Hetrick and C. McNeile and K. Orginos and R. Sugar and D. Toussaint",

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T1 - FB for various actions

T2 - Approaching the continuum limit with dynamical fermions

AU - Bernard, C.

AU - Datta, S.

AU - DeTar, C.

AU - Gottlieb, S.

AU - Heller, U. M.

AU - Hetrick, J.

AU - McNeile, C.

AU - Orginos, K.

AU - Sugar, R.

AU - Toussaint, D.

PY - 2001/3

Y1 - 2001/3

N2 - We present results for pseudoscalar decay constants of heavy-light mesons using both quenched and Nf = 2 dynamical fermion configurations. A variety of fermion actions is investigated: Wilson, nonperturbative clover, and fat-link clover. For heavy quarks the Fermilab formalism is applied. In the quenched approximation, results with the nonperturbatively improved clover action of the Alpha collaboration allow us to study the systematic error of the continuum extrapolation from the Wilson action. In addition, we use quenched configurations to explore the effects of fattening. The lessons from the quenched analyses are then applied to data with dynamical fermions, where both Wilson and fat-link clover actions have been used. This allows us to attempt a continuum extrapolation of the dynamical results.

AB - We present results for pseudoscalar decay constants of heavy-light mesons using both quenched and Nf = 2 dynamical fermion configurations. A variety of fermion actions is investigated: Wilson, nonperturbative clover, and fat-link clover. For heavy quarks the Fermilab formalism is applied. In the quenched approximation, results with the nonperturbatively improved clover action of the Alpha collaboration allow us to study the systematic error of the continuum extrapolation from the Wilson action. In addition, we use quenched configurations to explore the effects of fattening. The lessons from the quenched analyses are then applied to data with dynamical fermions, where both Wilson and fat-link clover actions have been used. This allows us to attempt a continuum extrapolation of the dynamical results.

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JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

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ER -

F_B for various actions: Approaching the continuum limit with dynamical fermions

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