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arXiv · hep-lat/9411080

Preliminary heavy-light decay constants from the MILC collaboration

C. Bernard·T. Blum·A. De·T. DeGrand·C. DeTar·Steven Gottlieb·U. M. Heller·N. Ishizuka·L. Kärkkäinen·J. Labrenz·A. Soni·R. Sugar·D. Toussaint
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Abstract

Preliminary results from the MILC collaboration for $f_B$, $f_{B_s}$, $f_D$, $f_{D_s}$ and their ratios are presented. We compute in the quenched approximation at $β=6.3$, 6.0 and 5.7 with Wilson light quarks and static and Wilson heavy quarks. We attempt to quantify systematic errors due to finite volume, finite lattice spacing, large $am$, and fitting and extrapolation uncertainties. The hopping parameter approach of Henty and Kenway is used to treat the heavy quarks; the sources are Coulomb gauge gaussians.

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C. Bernard, T. Blum, A. De, T. DeGrand, C. DeTar, Steven Gottlieb, U. M. Heller, N. Ishizuka, L. Kärkkäinen, J. Labrenz, A. Soni, R. Sugar, D. Toussaint. 1994-11-29. Preliminary heavy-light decay constants from the MILC collaboration. https://doi.org/10.1016/0920-5632(95)00258-b

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