Linear momentum transfer in nonrelativistic nucleus-nucleus collisions

Complex fragment emission at 50 MeV/u: Compound nuclei forever?

“…After transformation to ordinary kinematics, one obtains a value of 53 ± 14 % for the momentum transfer, in agreement with Viola's systematics [20]. reproduce the data to within a factor of two.…”

Multifragmentation in Heavy-Ion Processes

“…Perhaps, the experimental approach most widely used has been the determination of the fission-fragment folding angle (127,(181)(182)(183)(184)(185)(186)(187)(188)(189)(190)(191)(192) in reactions induced by an intermediate energy heavy ion on a rather fissionable target, lil<e Au, Thor U. The distribution of folding angles typically shows two peaks, one close to 180°, characteristic of grazing collisions, and another, very broad, at a smaller angle.…”

Study of the fusion-fission process in the 35Cl +24Mg reaction

“…This is due to the fact that large correlation angles select more peripheral collisions with a smaller energy damping [34] and therefore the sequential LCP and neutron emission is smaller with a moderate linear-momentum transfer. The most probable missing charge < ∆Z > was found to be around 3-4 charge units, which is most likely lost through particle emission from either the excited composite system or a secondary sequential evaporation from one of the binary-reaction partners.…”

“…[10]. From a comparison of the mean locus of experimental TKE values with the indicated circles it is clearly visible that the fission fragments need optimum values for the folding angles as it is well known for FF reactions of heavy-mass systems [34].…”

“…Depending of the chosen angle settings, events arising from quasi-elastic to fully energy-damped processes are selected by the coincidence requirements ; i.e. the more the folding angle (which is defined as being the separation angle between coincident fragment pairs) is open, the more the collision is peripheral [34] with smaller linear-momentum transfer. The circles which illustrate a full energy damping were deduced from the TKE systematics of Ref.…”