Quasielastic scattering and subbarrier fusion of aligned ²³Na with ²⁰⁶Pb

Based on a local but energy dependent potential for the system ²³Na²⁰⁶Pb at sub-and near-barrier energies a consistent description of (quasi) elastic scattering and fusion has been achieved. The local real and imaginary energy dependent potentials were deduced from quasielastic scattering of aligned ²³Na projectiles on ²⁰⁶Pb. They obey a dispersion relation. In calculations for both quasielactic scattering and fusion, coupling to the first two excited states of the ²³Na projectiles were treated explicitly.