No abstract

We discuss results concerning the behavior of hot nuclear sources formed in 40 ,48Ca+40 ,48Ca reactions at 25 MeV/nucleon. A correlation between the neutron-to-proton ratio of the total systems and heavy residue production is found. This correlation underlines the strong role played by the neutron-to-proton ratio degree of freedom on the behavior of hot nuclei at intermediate energies. Comparisons of our data with Constrained Molecular Dynamics calculations confirm that a moderately stiff behavior of the symmetry potential must be used to reproduce experimental data. These findings open the way for future investigations with exotic beams at radioactive ion beam facilities

PACS. 25.50 -2H-and 3H-induced reactions and scattering. PACS. 25.60 -3He-and *He-induced reactions and scattering.

No abstract

Velocity, angular, mass, and charge distributions of isotopically resolved residues coming from the reaction 32 Sϩ 12 C were measured at the bombarding energy E( 32 S)ϭ19.5 MeV/nucleon. Complete and incomplete fusion and direct components have been separated in the velocity spectra using kinematical analysis and deconvolution techniques. For each residue, incomplete and complete fusion cross sections have been extracted and the results are compared with the LILITA code predictions. The complete fusion cross section and the deduced critical angular momentum are also compared with other experimental data and with the predictions of theoretical models.