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arXiv · hep-lat/9211048

Quenched Lattice Results for $f_B$ and $f_D$

Claude Bernard·James Labrenz·Amarjit Soni
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Abstract

We have computed the decay constants for the $B$ and $D$ mesons, using quenched lattices at $β=6.3$, by interpolating between the static approximation of Eichten and the conventional (``heavy'' Wilson fermion) method. A more careful treatment of the static result using better sources with longer time-displacements and a modification to the Wilson quark normalization to correct approximately for lattice effects in the large-$am$ regime have led to the elimination of the large discrepancy between the two methods which had been previously observed. We report final results, with estimates of various systematic errors.

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Claude Bernard, James Labrenz, Amarjit Soni. 1992-11-18. Quenched Lattice Results for $f_B$ and $f_D$. https://doi.org/10.1016/0920-5632(93)90251-z

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