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Information × Registration Number 0224U002279, 0121U112282 , R & D reports Title Nuclear interaction with shortliving and weakly bound 1p-shell nuclei popup.stage_title Head Ponkratenko Oleh A., Доктор фізико-математичних наук Registration Date 10-02-2024 Organization Institute of Nuclear Research of the National Academy of Sciences of Ukraine popup.description2  New experimental differential cross sections are obtained for: elastic and inelastic scattering in the 15N + 6Li system at energy Elab.(15N) = 81 MeV; reactions 10B(15N,14С)11С at energy Elab.(15N) = 81 MeV and 6Li(10B,9Be)7Be at Elab.(10B) = 51 MeV for the ground and some excited states of the nuclei of the output channels. Based on the coupled reaction channels analysis of the obtained data, parameters of the optical potentials for the interaction of the nuclei 15N + 6Li, 9Be + 7Be, 14С + 11С at the corresponding energies of collision are determined, dominating mechanisms of interaction are established. Isotopic effects were detected in the interaction of boron isotopes 10,11,12,13B with the 12C nucleus, which cannot be described while using the nucleon density distributions calculated recently by use of the Glauber model. This result indicates the need to refine such model densities in the case of 10,11B nuclei. The global energy- and mass-dependent potential for the 6Li interaction in the energy ranges from 1 up to 100 MeV per nucleon and target masses from 12 up to 208 a.o.m. is constructed based on the folding method approach. It is shown that such characteristics of the potential as the crossing radius and the value of the complex potential at such a radius are quite stable against changes of parameters of the potential within allowed ambiguity. The characteristics appears to have smooth energy and mass dependences. Asymptotic normalization coefficient (ANC) and spectroscopic factor for the separation of proton in the 14C nucleus 14C → 13B + p is obtained based on the 14C(11B,12C)13B reaction analysis. A model dependence of the obtained values is revealed. The dependence is weaker for ANC than for the spectroscopic factor. Product Description popup.authors Mezhevych Segij Yu Rudchik Adam T. Rudchik Andriy A. Stepanenko Yurii M. Uleshcheko Volodymyr V. Shyrma Yuriy O. popup.nrat_date 2024-02-10 Close