Status and prospect for determining fB, fBs, fBs / fB on the lattice
Abstract
Preliminary results from the MILC collaboration for fB, fBs, fD, fDs 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 all systematic errors other than quenching, and have a first indication of the size of quenching errors.
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