The binary and ternary decay of hot heavy nuclei produced in the reaction 14N(34 AMeV)+197Au

The binary and ternary decay of hot heavy nuclei produced by incomplete fusion in the reaction 14N(34 AMeV) +197Au has been investigated at the 4π-array FOBOS. The fragment masses, velocities and energies have been derived using the TOF-E-method. The analysis of the TKE-M-distribution of binary decays showed that at sufficient excitation energy of the composite system, i.e. for large transferred linear momentum, one observes the two limits of the decay mechanism, namely fission-like and evaporation-like binary disintegrations at small and large mass asymmetry of the fragments, respectively. Two sources of IMF emission associated with fission are well separated by consideration of the relative velocities, angular distribution, excitation functions and charge yields. Besides the high-energetic compound emission of IMF before fission the low-energy neck-emission during fission has been observed. Evidence has been found for a third IMF-component which possibly originates from a delayed double neck-rupture of the deformed fissioning system