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, K. A. Chercas¹, A. A. Rudchik¹, E. I. Koshchy², S. Kliczewski³, K. Rusek^4,5, V. A. Plujko⁶, O. A. Ponkratenko¹, S. Yu. Mezhevych¹, Val. M. Pirnak¹, R. Sudak³, J. Choiński⁵, B. Czech³, A. Szczurek<sup>3

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
⁴National Centre for Nuclear Research, Warsaw, Poland
⁵Heavy Ion Laboratory, Warsaw University, Warsaw, Poland
⁶Kyiv Taras Shevchenko National University, Kyiv, Ukraine

Abstract: Angular distributions of the ⁶Li(¹⁸O, ¹⁷O)⁷Li reaction were measured at E_lab(¹⁸O) = 114 MeV for ground and excited states of exit nuclei. The data were analyzed within the coupled-reaction-channels method (CRC). The ⁶Li + ¹⁸O elastic and inelastic scattering channels as well as the simplest one- and two-step reactions were included in the coupled-reaction-channels scheme. In CRC calculations, the ⁶Li + ¹⁸O potential with parameters deduced from the elastic scattering data, was used for the entrance reaction channel. The spectroscopic amplitudes of nucleons and clusters were calculated within the translational-invariant shell model. The ⁷Li + ¹⁷O potential parameters were deduced by fitting ⁶Li(¹⁸O, ¹⁷O)⁷Li reaction data. Isotopic differences of the ⁷Li + ¹⁷O, ⁷Li + ¹⁸O and ⁷Li + ¹⁶O potential, as well as the reaction mechanisms are studied.

Keywords: heavy-ion reactions, coupled-reaction-channels method, spectroscopic amplitudes, optical potentials, reaction mechanisms.

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