Chiral Perturbation Theory for τ → ρπντ, τ → K ∗ πντ, and τ → ωπντ 1

We use heavy vector meson SU(2)L × SU(2)R chiral perturbation theory to predict differential decay distributions for τ → ρπντ and τ → Kπντ in the kinematic region where pV ·pπ/mV (here V = ρ or K) is much smaller than the chiral symmetry breaking scale. Using the large number of colors limit we also predict the rate for τ → ωπντ in this region (now V = ω). Comparing our prediction with experimental data, we determine one of the coupling constants in the heavy vector meson chiral Lagrangian. Work supported in part by the U.S. Dept. of Energy under Grant No. DE-FG03-92-ER40701.