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

The angular distributions of alpha-particles and deuterons scattered elastically and inelastically by Li 6 and Li 7 were measured. The 2.18 MeV state of Li 6 , the 0.478 MeV and the 4.63 MeV states of Li 7 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 Li 6 and by Li 7 , 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 Li 6 and Li 7 as compared with rotational model calculations of the energy levels.

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