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. O. Shyrma¹, E. I. Koshchy², S. Kliczewski³, B. G. Novatsky⁴, O. A. Ponkratenko¹, E. Piasecki^5,6, G. P. Romanyshyna¹, K. Rusek⁵, Yu. M. Stepanenko¹, I. Strojek⁵, S. B. Sakuta⁴, A. Budzanowski³, L. Głowacka⁷, I. Skwirczyńska³, R. Siudak³, J. Choiński⁶, 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 Research Centre "Kurchatov Institute", Moscow, Russia
⁵Soltan Institute for Nuclear Studies, Warsaw, Poland
⁶Heavy Ion Laboratory, Warsaw University, Warsaw, Poland
⁷Institute of Applied Physics of the Military University of Technology, Warsaw, Poland

Abstract: New angular-distribution data of ¹³С + ¹⁸О elastic and inelastic scattering at the energy E_lab(¹⁸O) = 105 MeV were obtained for the transitions to the ground and excited states 3.088 MeV(1/2⁺), 3.555 MeV (1/2^-), 3.854 MeV (5/2⁺) of ¹³С and 1.982 MeV (2⁺), 3.555 MeV (4⁺), 3.921 MeV (2⁺), 4.456 MeV (1^-), 5.098 MeV (3^-), 5.260 MeV (2⁺) of ¹⁸O. These and the ¹³С + ¹⁸О elastic scattering data taken from the literature at the energies E_lab(¹⁸O) = 15, 20, 24, 31 MeV and E_lab(¹³С) = 24 MeV were analysed within the optical model and coupled-reaction-channels methods. Sets of ¹³С + ¹⁸О optical potential parameters and their energy dependence were obtained. Contributions of potential scattering and transfer reactions to the elastic and inelastic channels of ¹³С + ¹⁸О scattering were studied. Isotopic differences (effects) in ^12,13С + ^16,18О optical potential parameters were investigated.

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

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