A nonlocal separable interaction of Mongan type has been used to study $S$-, $D$-, and $G$- wave $\alpha -\alpha$ scattering phase shifts up to a bombarding energy of 24 MeV. Calculations have been made in the coordinate representation in which the Coulomb effects have been taken into account exactly. A separable representation of the $\alpha -\alpha$ interaction is found to be satisfactory.

NUCLEAR STRUCTURE $\alpha -\alpha$ interaction; used separable potential to study $S$-, $D$-, and $G$-wave $\alpha -\alpha$ phase shifts.

• Received 20 November 1973

DOI:https://doi.org/10.1103/PhysRevC.10.1