1997/10/06 by Joseph Christensen, Terrence Draper, Craig McNeile · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat
paper · pdf · doi:10.1016/s0920-5632(97)00775-5
published as Nucl.Phys.Proc.Suppl.63:377-379,1998 · 3 Pages, LaTeX, Poster at Lattice '97
arxiv created 1997/10/06 · openalex publication_date 1998/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We calculate the Isgur-Wise function on the lattice, simulating the light quark with the Wilson action and the heavy quark with a direct lattice implementation of the heavy-quark effective theory. Improved smearing functions produced by a variational technique, MOST, are used to reduce the statistical errors and to minimize excited-state contamination of the ground-state signal. Calculating the required matching factors, we obtain ξ'(1)=-0.64(13) for the slope of the Isgur-Wise function in continuum-HQET in the \barMS scheme at a scale of 4.0 GeV.