Precision study of B^* Bπcoupling for the static heavy-light meson

S. Negishi, H. Matsufuru, T. Onogi

We compute the B^*Bπcoupling \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 im…