Abstract
Radiative decays π0(π0′) → γ + γ, π0′ → ρ0(ω) + γ, ρ0′(ω′) → π0 + γ, ρ0′(ω′) → π0′ + γ, and some processes of π0′ production at lepton colliders are considered in the framework of the nonlocal SU(2) × SU(2) Nambu-Jona-Lasinio model. Mixing of the radially excited and the ground meson states is taken into account. Numerical results for the decay and production processes are presented.
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