Sub-barrier fusion of heavy ions is studied in a model that uses an $l$-dependent nuclear potential to reproduce the experimentally observed enhancement of the fusion cross sections. The parameters of the potential are found to scale with the reduced radii of the systems investigated, which points to dynamic deformations and/or neck formation as being the possible cause of the enhancement.

[NUCLEAR REACTIONS Sub-barrier fusion, $l$-dependent nuclear potential.]

• Received 6 September 1983

DOI:https://doi.org/10.1103/PhysRevC.29.335