We propose a simple model for estimating the nucleon transfer contribution to the imaginary part of the nucleus-nucleus optical potential. Using the proximity method we calculate the transfer probability per unit time in terms of the flux of nucleons between two slabs. Pauli blocking and barrier penetration effects are taken into account. We compare our results with phenomenological potentials at the strong absorption radius.

NUCLEAR REACTIONS Imaginary part of the heavy ion optical potential. Nucleon transfer contribution. Barrier penetration, Pauli blocking, and relative motion effects.

• Received 6 August 1981

DOI:https://doi.org/10.1103/PhysRevC.25.2450