Toward accurate form factors for $B$-to-light meson decay from lattice QCD

W. G. Parrott, C. Bouchard, C. T. H. Davies +1

We present the results of a lattice QCD calculation of the scalar and vector form factors for the unphysical $B_s\to {\eta }_s$ decay, over the full physical range of $q^2$. This is a use…