Vector-meson decay into pseudoscalar mesons from quenched lattice QCD

We have calculated the coupling constants for the hadronic decays of the form A→Bπ where A is a vector meson and B is a pseudoscalar meson. We have used an exact method of evaluating the appropriate three-point correlation function on the lattice in the quenched approximation. After taking into account contamination of the three-point functions by more massive states, we find that our results are in agreement with experiment (but have very large errors) for the decays K/sup */→Kπ and rho→ππ