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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A. T. Rudchik¹, Yu. M. Stepanenko¹, A. A. Rudchik¹, O. A. Ponkratenko¹, E. I. Koshchy², S. Kliczewski³, K. Rusek⁴, A. Budzanowski³, S. Yu. Mezhevych¹, I. Skwirczyńska³, R. Siudak³, B. Czech³, A. Szczurek³, J. Choiński⁵, L. Głowacka<sup>6

1</sup>Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
²V. N. Karazin Kharkiv National University, Kharkiv, Ukraine
³H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Cracow, Poland
⁴Soltan Institute for Nuclear Studies, Warsaw, Poland
⁵Heavy Ion Laboratory, Warsaw University, Warsaw, Poland
⁶Institute of Applied Physics of the Military University of Technology, Warsaw, Poland

Abstract: The new data of the angular distributions of ⁷Li(¹⁸O, ¹⁶N)⁹Be reaction were obtained for the transitions to the ground and excited states of ⁸Be and ¹⁷N at the energy E_lab(¹⁸O) = 114 MeV. The angular distributions of the reaction were measured for the first time. Data were analyzed with coupled-reaction-channels method for one- and two-step transfers of nucleons and clusters. In the analysis, the ⁷Li + ¹⁸O potential deduced in the analysis of the elastic ⁷Li + ¹⁸O-scattering data as well as shell-model spectroscopic amplitudes of transferred nucleons and clusters were used. The parameters of the ⁹Be + ¹⁶N potential were deduced using the reaction data. The contributions of different one- and two-step transfers in the ⁷Li(¹⁸O, ¹⁶N)⁹Be reaction cross-section was studied.

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

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