Heavy-Light Meson Semileptonic Decays with Staggered Light Quarks
High Energy Physics - Lattice
2009-11-10 v1
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.
Cite
@article{arxiv.hep-lat/0309039,
title = {Heavy-Light Meson Semileptonic Decays with Staggered Light Quarks},
author = {J. Shigemitsu and C. T. H. Davies and A. Gray and E. Gulez and G. P. Lepage and M. Wingate},
journal= {arXiv preprint arXiv:hep-lat/0309039},
year = {2009}
}
Comments
3 pages, 3 postscript figures, Lattice2003(heavy)