Investigation of di-nuclear systems as entrance channel to fusion

We investigated the capture stage and successive nucleon transfer from the projectile to the target in the superheavy system Ni-64(28) + Pb-207(82) (Z(proj.) + Z(target) = 110). The target-like transfer products were detected at forward angles of (0 +/- 2) degrees, such, we selected nuclei resulting from central collisions. The data reveal several analogies to cold fusion reactions leading to superheavy elements. The observations are in accordance with the two-center shell model. The experiments have been performed at the velocity filter SHIP at GSI.