f_B for Various Actions : Approaching the Continuum Limit with Dynamical Fermions

Bernard, C, Datta, S, DeTar, C, Gottlieb, S, Heller, UM, Hetrick, J, Mcneile, C, Orginos, K, Sugar, R and Toussaint, D
(2000) f_B for Various Actions : Approaching the Continuum Limit with Dynamical Fermions. Nucl.Phys.Proc.Suppl., 94 (1-3). pp. 346-349.

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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.

Item Type: Article
Additional Information: Lattice 2000 (Heavy Quark Physics). 4 pages, 2 figures
Uncontrolled Keywords: hep-lat, hep-lat
Subjects: ?? QC ??
Divisions: Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User: Symplectic Admin
Date Deposited: 20 Nov 2008 12:27
Last Modified: 17 Dec 2022 01:28
DOI: 10.1016/s0920-5632(01)00923-9
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/590