Simultaneous analysis of the elastic scattering and breakup channel for the reaction [superscript 11]Li + [superscript 208]Pb at energies near the Coulomb barrier

Abstract

We present a detailed analysis of the elastic scattering and breakup channel for the reaction of [superscript 11]Li on [superscript 208]Pb at incident laboratory energies of 24.3 and 29.8 MeV, measured at the radioactive ion beam facility of TRIUMF, in Vancouver, Canada. A large yield of [superscript 9]Li fragments was detected by four charged particle telescopes in a wide angular range. The experimental angular and energy distributions of these [superscript 9]Li fragments have been compared to coupled-reaction-channel and continuum-discretized coupled-channel calculations. The large production of [superscript 9]Li fragments at small angles can be explained by considering a direct breakup mechanism, while at medium-large angles a competition between direct breakup and neutron transfer to the continuum of the [superscript 208]Pb target was observed.