Many pion decays of rho(770) and omega(782) mesons in chiral theory - art.no. 056011

The decays rho(770) --> 4 pi and omega(782) --> 5 pi are considered in dera il in the approach based on the Weinberg Lagrangian obtained upon the nonli near realization of chiral symmetry, added with the term induced by the ano malous Lagrangian of Wess and Zumino. The partial widths and excitation cur ves of the decays rho(0) --> 2 pi(+)2 pi(-), pi(+)pi(-)2 pi(0), rho(+/-) -- > 2 pi(+/-)pi(-/+)pi(0), rho(+/-) --> pi(+/-)3 pi(0) are evaluated for e(+) e(-) annihilation, photoproduction, and tau lepton decays. The results of t he calculations are compared with the recent CMD-2 data on the decay rho(0) -->2 pi(+)2 pi(-) observed in the e(+)e(-) annihilation. The omega --> 5 pi decay widths and excitation curves in e(+)e(-) annihilation are obtained. The angular distributions for various combinations of the final pions in th e decays rho --> 4 pi and omega --> 5 pi are written. The perspectives of t he experimental study of the above decays in e(+)e(-) annihilation, tau lep ton decays, and photoproduction are discussed.