We present a calculation of fB​ in the static limit, obtained by numerical
simulation of quenched QCD, at β=6.2 on a 183×64 lattice, using
the SW-Clover quark action. The decay constant has been extracted by studying
heavy(static)-light correlation functions of different smeared operators, on a
sample of 220 gauge field configurations. We have obtained fBstatic​=(290±15±45) MeV, where the first error comes from the uncertainty in the
determination of the matrix element and the second comes from the uncertainty
in the lattice spacing. We also obtain MBs​​−MBd​​=(70±10) MeV and
fBs​stat​/fBd​stat​=1.11(3). A comparison of our results with other
calculations of the same quantity is made.Comment: 12 pages, LaTex, 3 figs. (figures not included; available upon
request from [email protected]) ROME prep. 94/981, 18 February 199