At present the search for new elements plays a key role in nuclear physics. By using the large cyclotrons built in Dubna [1] and the heavy ion UNILAC accelerator of GSI- Darmstadt, experimentalists managed to obtain a row of new elements. The binary processes in which the superheavies are produced are based mainly on two methods: in Darmstadt a target of 208Pb andin Dubna the double magic 209Bi takes advantage of the proton and neutron close shells, while 48,40Ca is used as a projectile on targets as 248Cm, 249Bk and 249Cf. Other important research projects are on their way at GANIL – France and Riken – Japan. At this moment there is no satisfactory microscopic description of the binary nuclear system during its overlapping stage of the process. All models employed by now fail to resolve how the two level schemes of the target and projectile mingle towards the final, compound nucleus energy arrangement. One can assert here that the model developed by our group, the deformed two-center shell model (DTCSM) is one of the most advanced in describing the transition of the level schemes. In this context, the shell and pairing energies along the overlapping region are calculated here towards lowering the fusion barrier. Thus the major issue to be addressed by the project is the microscopic description of the overlapping regionin the process of nuclear synthesis. During the overlap, the nuclear shape is strongly influenced by its binary character. Our theoretical new aspects will improve consistently the view upon binary nuclear shapes: the transition of the charge density from two initial to one final value (CN); the description of the pairing energy change along the overlapping region; the evolution of the cranking mass tensor within the dynamics of the process.

         

 

Objectives:   

 

 

1. Pairing interaction in binary nuclear systems

2. The cranking tensor of inertia

3. The multidimensional action integral

4. The nuclear synthesis cross section