Abstract
Radiative decays π 0(π 0′) → γ + γ, π 0′ → ρ 0(ω) + γ, ρ 0′(ω′) → π 0 + γ, ρ 0′(ω′) → π 0′ + γ, and some processes of π 0′ 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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Arbuzov, A.B., Kuraev, E.A. & Volkov, M.K. Electromagnetic decays of radially excited mesons π 0′, ρ 0′, ω 0′, and production of π 0′ at lepton colliders. Phys. Atom. Nuclei 74, 726–731 (2011). https://doi.org/10.1134/S1063778811050024
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DOI: https://doi.org/10.1134/S1063778811050024