Update on $f_B$

Details Update on $f_B$ Update on $f_B$

1996-08-16

arxiv.org/abs/hep-lat/9608092v1

Nucl.Phys.Proc.Suppl.53:358-361,1997

Physics

High Energy Physics

High Energy Physics - Lattice

Poster presented by C. Bernard at LATTICE96(heavy quarks); 4 pages of LaTeX, uses espcrc2 and epsf, four postscript figures in

Scientific paper

10.1016/S0920-5632(96)00659-7

We describe the current status of the MILC collaboration computation of $f_B$, $f_{B_s}$, $f_D$, $f_{D_s}$ and their ratios. Progress over the past year includes: better statistics and plateaus at $\beta=6.52$ (quenched), $\beta=5.6$ ($N_F=2$) and $\beta=5.445$ ($N_F=2$), new runs with a wide range of dynamical quark masses at $\beta=5.5$ ($N_F=2$), an estimate of the systematic errors due to the chiral extrapolation, and an improved analysis which consistently takes into account both the correlations in the data at every stage and the systematic effects due to changing fitting ranges.

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