Preliminary heavy-light decay constants from the MILC collaboration

Details Preliminary heavy-light decay constants from the MILC collaboration Preliminary heavy-light decay constants from the MILC collaboration

1994-11-29

arxiv.org/abs/hep-lat/9411080v1

Nucl.Phys.Proc.Suppl.42:388-390,1995

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages, compressed postscript (uufiles), talk given at Lattice '94

Scientific paper

10.1016/0920-5632(95)00258-B

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 $\beta=6.3$, 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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