Application of the hidden local symmetry effective chiral Lagrangian to evaluation of the ω(782), φ(1020) → 5π decay widths

The amplitudes obtained from the effective chiral Lagrangian with anomalous terms based on hidden local symmetry are applied to the evaluation of the partial widths of the decay ω → 2π+2π-π0 and ω → π+2π-3π0. Combining the Okubo-Zweig-Iizuka rule applied to the five-pion final state with the Adler condition of vanishing of the amplitude at the vanishing of four-momentum of any final pion in chiral limit, the φ → 2π+2π-π0 and φ → π+π-3π0 decay amplitudes are also calculated. The partial widths of the above decays are evaluated, and the resonance excitation curves in e+e- annihilation are obtained, assuming reasonable particular relations among the free parameters characterizing the anomalous terms of the Lagrangian. The evaluated branching ratios Brφ→π+π-3π0 ∼ 2 x 10-7 and Brφ→2π+2π-π0 ∼ 5 x 10-7 are such that with the luminosity L=500 pb-1 attained at DAΦNE φ factory one may already possess about 1340 events of the decay φ → 5π