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. Mezhevych^1,*, O. A. Ponkratenko¹, Yu. M. Stepanenko¹, V. V. Uleshchenko¹, A. A. Rudchik¹, V. M. Kyrianchuk², Yu. O. Shyrma¹, Yu. S. Roznyuk¹, I. I. Vertegel<sup>1

1</sup> Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
² Scientific and Technical Center of National Nuclear Energy Generating Company "Energoatom", Kyiv, Ukraine

^*Corresponding author. E-mail address: sermezhev@gmail.com

Abstract: Recently published experimental angular distributions of the reaction ¹³С(¹¹В, ¹⁰В)¹⁴С at Е_lab(¹¹B) = 45.0 MeV for transitions to the ground states of exit channel nuclei, were analyzed within coupled-reaction-channels method (CRC), applying for ¹⁰В + ¹⁴С interaction the potentials for systems ¹⁰В + ^12-20С that were obtained by means of the double-folding method (DF) using modelled shapes for the distributions of nucleons in ¹⁰В and ^12-20С nuclei. This research aimed to investigate the influence of the surface structure of ^12-20С isotopes, reflected accordingly in the constructed potentials for the interaction of ¹⁰В + ^12-20С, on the results of CRC-calculations and their agreement with experimental data. The difference of CRC cross sections for the direct transfer of a neutron, as the main reaction mechanism, was found to be small when applying DF-potentials calculated for systems ¹⁰В + ^12-16С in the exit channel of this reaction. Only with DF-potentials for ¹⁰В + ^17-20С systems used in the exit channel of the reaction ¹³С(¹¹В, ¹⁰В)¹⁴С a more notable difference of CRC cross sections against the experimental data and those used for the system ¹⁰В + ¹⁴С was observed, what originates from more diffuse density distributions of nucleons modelled on the surfaces of isotopes ^17-20С in comparison with ¹⁴С. As CRC-calculations of transfer reactions are affected by strong couplings between different channels, what can deteriorate the investigation of the influence of slight differences in the shapes of DF-potentials in the interaction region, the measurements of angular distributions for the elastic and inelastic scattering of unstable ^15-20С isotopes are desirable, as far as possible, for the investigation of their internal structure and isotopic differences.

Keywords: coupled-reaction-channels method, optical potentials, nucleon density distributions.

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