A model of pion photoproduction on nuclei with emission of two nucleons that takes account of the spectator mechanism of knockout of an isobar produced in the nucleus at the virtual transition NN → ∆N in the ground state of the nuclei is presented. An analysis of experimental data for the reaction 12C(γ, π − p) at large momentum transfers is performed.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 2, pp. 110–116, February, 2017.
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Glavanakov, I.V., Tabachenko, A.N. Spectator Mechanism of ∆-Isobar Knockout. Russ Phys J 60, 322–330 (2017). https://doi.org/10.1007/s11182-017-1078-7
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DOI: https://doi.org/10.1007/s11182-017-1078-7