Reaction studies near the barrier for medium heavy systems: Ni + Sn

Cross sections for elastic and inelastic scattering, single- and multi-nucleon transfer, fusion followed by particle evaporation leaving an evaporation residue, and fusion followed by fission have been measured for 5864Ni beams incident on even Sn targets at energies from below to above the Coulomb barrier. The Ni beams were provided by the Argonne Superconducting Linac. The aim of these measurements is a comprehensive study of the reaction systematics in a medium-heavy collision system. At present, a small fraction of the data has been fully analyzed and published, a larger part is presently being compared to model calculations. Some of the data needs to be confirmed by additional measurements. This summary should be viewed as a status report and an attempt to formulate some of the open questions. 9 references