Abstract
The particle-hole dispersive optical model is implemented to describe together E1 photo-absorption and direct + semidirect photoneutron reactions accompanied by excitation of the giant dipole resonance. Being based on this description, a quantitative estimation of the partial and total branching ratios for direct one-neutron decay of the mentioned giant resonance in a few medium-heavy neutron-closed-shell nuclei is obtained. Calculation results are compared with corresponding experimental data.
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Funding
This work was supported by the Russian Foundation for Basic Research, project no. 19-02-0060 and partially supported by the Ministry of Education and Science in the framework of the Program for Increasing the Competitiveness of the National Research Nuclear University MEPhI, project no. 02.A03.21.0005 of August 27, 2013 (M.H.U.).
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Translated by N. Petrov
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Tulupov, B.A., Urin, M.H. Direct + Semidirect E1 Photoneutron Reactions: Semimicroscopic Description. Phys. Part. Nuclei 50, 550–555 (2019). https://doi.org/10.1134/S106377961905023X
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DOI: https://doi.org/10.1134/S106377961905023X