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, Russian   Periodicity: 4 times per year   Open access peer reviewed journal

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Abstract: Angular distributions of the ⁷Li(¹⁵N,¹⁴C)⁸Be reaction were measured at the energy E_lab(¹⁵N) = 81 MeV. The reaction data were analyzed within coupled-reaction-channels (CRC) method. The ⁷Li + ¹⁵N elastic and inelastic scattering and the more important one- and two-step transfers of this reaction were included in the channels-coupling scheme. Previously the ⁷Li + ¹⁵N optical potential parameters were deduced from the CRC analysis of the ⁷Li + ¹⁵N elastic scattering data at E_lab(¹⁵N) = 81 MeV. The spectroscopic amplitudes needed for CRC-calculations of the reaction were calculated within the translational invariant shell model (TISM). CRC analysis of the ⁷Li(¹⁵N,¹⁴C) reaction data showed the p transfer dominants in this reaction. The parameters of the ¹⁴C + ⁸Be optical potential were deduced from CRC analysis of the reaction data and were compared with that of the ¹³C + ⁸Be potential parameters deduced previously from CRC analysis of ⁹Be(¹²C,¹³C)⁸Be reaction data. The isotopic differences are observed.

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

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