Microscopic calculations of elastic scattering between light nuclei based on a realistic nuclear interaction

The elastic phase shifts for the α + α and α + He collisions are calculated in a cluster approach by the Generator Coordinate Method coupled with the Microscopic R-matrix Method. Two interactions are derived from the realistic Argonne potentials AV8’ and AV18 with the Unitary Correlation Operator Method. With a specific adjustment of correlations on the α + α collision, the phase shifts for the α + α and α + He collisions agree rather well with experimental data.