Production of ωπ0 pairs in electron-positron annihilation

The process of electron-positron annihilation into a pair of pi(0) and omega mesons is considered in the framework of the SU(2) x SU(2) Nambu-Jona-Lasinio model. Contributions of intermediate photons, rho(770) and rho'(1450) vector mesons are taken into account. It is shown that the bulk of the cross section at energies below 2 GeV is provided by the process with intermediate. rho'(1450) state. The contribution due to single photon and rho(770) exchange is in agreement with the vector meson dominance model. Numerical results are compared with experimental data.