Mechanisms of 13C(11B,7Li)17O reaction at the 11B ion energy 45 MeV

• Published in: I͡A︡derna fizyka ta enerhetyka Vol. 19; no. 4; pp. 341 - 349
• Main Authors: Mezhevych, S.Yu, Rudchik, A.T., Rusek, K., Kemper, K.W., Rudchik, A.A., Ponkratenko, O.A., Sakuta, S.B.
• Format: Journal Article
• Language: English
• Published: Institute for Nuclear Research, National Academy of Sciences of Ukraine 25.12.2018
• Subjects: coupled-reaction-channels method; folding-model; nuclear reactions; optical model; optical potentials; spectroscopic amplitudes
• ISSN: 1818-331X; 2074-0565
• DOI: 10.15407/jnpae2018.04.341

Reaction 13C(11B, 7Li)17O at the energy Еlab(11B) = 45 MeV for the ground and excited states of the 7Li and 17O nuclei was studied. The reaction experimental data were analyzed within the coupled-reaction-channels method (CRC). The 13C + 11B elastic scattering channel and one- and two-step reactions transferring nucleons and clus-ters were included in the coupling scheme. The spectroscopic amplitudes of nucleons and clusters needed for the CRC-calculations were computed within the translationally invariant shell model (TISM). The Woods-Saxon (WS) potential was used for the entrance reaction channel with the parameters deduced from the CRC-analysis of the 11B + 13C elastic scattering experimental data when the potential WS and the folding-potential (DF) with im-aginary part, parameters of which were deduced from the fitting of the CRC cross sections to the 13C(11B, 7Li)17O reaction experimental data, were used for the exit 7Li + 17O reaction channel. The parameters of the imaginary WS-potential were deduced in the same way. The parameters of the real part of this potential were obtained by fitting it to the peripheral region of the DF-potential. Isotopic differences of the 13C(11B, 7Li)17O reaction cross sections using the parameters of 7Li + 17O, 7Li + 16О and 7Li + 18O interaction for the exit reaction channel were observed.