Ядерна фізика та енергетика Nuclear Physics and Atomic Energy   ISSN: 1818-331X (Print), 2074-0565 (Online)   Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine   Languages: Ukrainian, English   Periodicity: 4 times per year   Open access peer reviewed journal

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S. Yu. Mezhevych¹, A. T. Rudchik¹, K. Rusek^2,6, E. I. Koshchy³, S. Kliczewski⁴, A. V. Mokhnach¹, A. A. Rudchik¹, S. B. Sakuta⁵, R. Siudak⁴, B. Czech⁴, J. Choiński⁶, A. Szczurek<sup>4

1</sup> Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
² National Institute for Nuclear Research, Warsaw, Poland
³ V. N. Karazin Kharkiv National University, Kharkiv, Ukraine
⁴ H. Niewodniczanski Institute of Nuclear Physics, Krakow, Poland
⁵ National Research Centre "Kurchatov Institute", Moscow, Russia
⁶ Heavy Ion Laboratory, University of Warsaw, Warsaw, Poland

Abstract: New experimental data for differential cross sections of the ¹⁴С(¹¹B, ⁹Be)¹⁶N reaction were measured for the ground states of ⁹Be and ¹⁶N nuclei as well as for the excited states of ¹⁶N at the energy E_lab.(¹¹В) = 45 MeV. The reaction data were analyzed within the coupled-reaction channels method (CRC) for one- and two-step transfers of nucleons and clusters. In the CRC-calculations, the optical potential deduced from the analysis of the ¹¹В + ¹⁴С elastic scattering data was used for the entrance reaction channel. Needed spectroscopic amplitudes of nucleons and clusters in nuclei were calculated within shell-model. ⁹Ве + ¹⁶N optical potential parameters were deduced by fitting CRC cross-sections to the ¹⁴С(¹¹B, ⁹Be)¹⁶N reaction data. Contributions of one- and two-step transfers of nucleons and clusters into the ¹⁴С(¹¹B, ⁹Be)¹⁶N reaction cross-sections were obtained.

Keywords: nuclear reactions, optical model, coupled-reaction-channels method, folding-model, spectroscopic amplitudes, optical potentials, reaction mechanisms.

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