Elastic and Inelastic Scattering of 14.7 MeV Deuterons and of 29.4 MeV Alpha-Particles by Li⁶ and Li⁷

Abstract

The angular distributions of alpha-particles and deuterons scattered elastically and inelastically by Li⁶ and Li⁷ were measured. The 2.18 MeV state of Li⁶, the 0.478 MeV and the 4.63 MeV states of Li⁷ were appreciably excited. The experimental angular distributions were analysed with the DWBA theory, and the deformation parameters of the above mentioned states were determined.
Experimental results and the DWBA analysis show the existence of some difference between the inelastic scattering of alpha-particles by Li⁶ and by Li⁷, while no appreciable difference was observed in the case of the deuteron scattering. The DWBA calculation predicts larger quadrupole deformations of the excited states of Li⁶ and Li⁷ as compared with rotational model calculations of the energy levels.