Heavy-Light Meson Semileptonic Decays with Staggered Light Quarks
arXiv:hep-lat/0309039 · doi:10.1016/S0920-5632(03)02572-6
Abstract
We report on exploratory studies of heavy-light meson semileptonic decays using Asqtad light quarks, NRQCD heavy quarks and Symanzik improved glue on coarse quenched lattices. Oscillatory contributions to three-point correlators coming from the staggered light quarks are found to be handled well by Bayesian fitting methods. B meson decays to both the Goldstone pion and to one of the point-split non-Goldstone pions are investigated. One-loop perturbative matching of NRQCD/Asqtad heavy-light currents is incorporated.
3 pages, 3 postscript figures, Lattice2003(heavy)