Coincidences between light particles, evaporation residues and complex fragments emitted in the reaction ⁵⁸Ni + ⁵⁸Ni at 500 MeV bombarding energy

Light particles (protons and alphas) were measured in coincidences with complex fragments (4 < Z < 10) and evaporation residues (Z > 40) using the large detector array HILI. A ⁵⁸Ni beam of 500 MeV exlracted from lhe HHIRF tandem acceleralor was used to bombard a ⁵⁸Ni target of 99% enrichment. A good account of the proton and alpha spectra in coincidences with the residues can be achieved only by including in the statistical model calculation the emission of complex fragments and allowing a small emission of a dinuclear configuration formed prior to fusion. The relative kinetic energy spectra between the complex fragments and the residues show a typical coulomb peak consistent with emission from the compound nucleus and the out of plane angular correlation shows that the emission is coplanar.