Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1994-01-13
Nucl.Phys.Proc.Suppl.34:453-455,1994
Physics
High Energy Physics
High Energy Physics - Lattice
3pages, uuencode-compressed-tar Postscript file. (160 kbytes), preprint number uk/93-05
Scientific paper
10.1016/0920-5632(94)90414-6
We present a new method for the study of heavy-light mesons in the static approximation of lattice QCD which is optimally effective in isolating ground and excited states. With ``MOST'' (Maximal Operator Smearing Technique), the heavy quark is smeared at all possible positions relative to the light quark, subject to the constraint of cubic symmetry. With correlation functions constructed using this set as a variational basis, eigenstates of the transfer matrix are projected out at very small time separations, where statistical errors are small. We illustrate the utility of the method with preliminary results for the meson decay constant $f_{B}^{\rm stat}$, binding energies and wave functions of the lowest states. The method produces dynamically-improved interpolating fields which can be used for matrix element calculations.
Draper Terrence
McNeile Craig
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