Precision study of B^* B\pi coupling for the static heavy-light meson
High Energy Physics - Lattice
2008-11-26 v2
Abstract
We compute the B^*B\pi coupling \hat{g}_{\infty} for static heavy-light meson using all-to-all propagators. It is shown that low-mode averaging with 100 low-lying eigenmodes indeed improves the signal for the 2-point and 3-point functions for heavy-light meson significantly. Our study suggests that the all-to-all propagator will be a very efficient method for high precision computation of the B^*B\pi coupling especially in unquenched QCD where the number of configurations is limited.
Cite
@article{arxiv.hep-lat/0612029,
title = {Precision study of B^* B\pi coupling for the static heavy-light meson},
author = {S. Negishi and H. Matsufuru and T. Onogi},
journal= {arXiv preprint arXiv:hep-lat/0612029},
year = {2008}
}
Comments
30 pages, 25 figures, typos corrected