Inelastic scattering of fast neutrons on Li-6 and Li-7 nuclei in three-body cluster model

摘要

The systematic approach to calculating cross section of inelastic neutron scattering on Li-6 and Li-7 nuclei in the range of kinetic energies E-n = 0.1 - 20 MeV is presented. The reaction mechanism is described using the Faddeev equations within the problem of neutron interaction with two clusters which form the target nucleus bound state. The length anti of elastic n-Li scattering are calculated. The coherence effect on n(5)Li and alpha d contributions to Li-6 nucleus ground state is demonstrated by the example of elastic neutron scattering reaction. Total and differential cross sections of inelastic neutron scattering on Li-6 and Li-7 nuclei with formation of three and four particles in the final state are calculated. Three-body interaction of clusters which form the target nucleus ground state in Li-6(n, n')d alpha and Li-7(n, n'alpha)t reactions is shown to be of great importance. (C) 2019 Published by Elsevier B.V.