An analytical expression for the dynamic polarization potential is derived for the elastic scattering of light halo nuclei in the Coulomb field of heavy targets. The derivation is based on the adiabatic motion of the projectile below and close to the Coulomb barrier together with a uniform approximation for the Coulomb functions. Detailed computations have been carried out for the elastic scattering of $d+{}^{208}\mathrm{Pb}$ and ${}^6\mathrm{He}+{}^{208}\mathrm{Pb}$ at collision energies of 8 and 17.8 MeV and are compared with measurements as far as available. The obtained expression for the dynamic polarization potential is simple and can be applied for any arbitrary system with a dineutron configuration.

• Received 7 December 2008

DOI:https://doi.org/10.1103/PhysRevC.79.044605