Status and prospect for determining fB, fBs, fBs / fB on the lattice
The MILC Collaboration, C. Bernard, T. Blum, A. De, T. DeGrand, C. DeTar, Steven Gottlieb, Urs M. Heller, N. Ishizuka, L. Kärkkäinen, J. Labrenz, K. Rummukainen, A. Soni, R. Sugar, D. Toussaint
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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