Microscopic Description of $${^{8}{\hbox {Li}}{+}}$$ 8 Li + Nucleus and of $${^{8}{\hbox {B}}{+}}$$ 8 B + Nucleus Scattering

Abstract

We apply a microscopic version of the Continuum Discretized Coupled Channel (CDCC) method, referred to as MCDCC, to $$^{8}{\hbox {Li}}$$ and $$^{8}{\hbox {B}}$$ scattering on different targets. The $$^{8}{\hbox {Li}}$$ and $$^{8}{\hbox {B}}$$ nuclei are described in a microscopic three-cluster model ( $$\alpha +t+n$$ and $$\alpha + {^{3}}\mathrm{He}+p$$ ), using the hyperspherical coordinates. We first present spectroscopic properties of these nuclei. Then, we determine $$^{8}{\hbox {Li}}+$$ nucleus and $$^{8}{\hbox {B}}+$$ nucleus potentials by using proton $$+$$ target and neutron $$+$$ target interactions. We compute various elastic-scattering cross sections and confirm that breakup effects are important, in particular at low energies. In general, we find a fair agreement with experiment, except for $${^{8}}\mathrm{B}\,+^{58}\text{ Ni }$$ where we suggest that the data might be overestimated.