We demonstrate the viability of improved staggered light quarks in studies of heavy-light systems. Our method for constructing heavy-light operators exploits the close relation between naive and staggered fermions. The new approach is tested on quenched configurations using several staggered actionsn combined with nonrelativistic heavy quarks. The B_s meson kinetic mass, the hyperfine and 1P-1S splittings in B_s, and the decay constant f_{B_s} are calculated and compared to previous quenched lattice studies. An important technical detail, Bayesian curve-fitting, is discussed at length.
@article{arxiv.hep-lat/0211014,
title = {Heavy-light mesons with staggered light quarks},
author = {Matthew Wingate and Junko Shigemitsu and Christine T. H. Davies and G. Peter Lepage and Howard D. Trottier},
journal= {arXiv preprint arXiv:hep-lat/0211014},
year = {2009}
}
Comments
38 pages, figures included. v2: Entry in Table IX corrected and other minor changes, version appearing in Phys. Rev. D