Mass-Asymmetric Barriers from Excitation Functions for Complex-Fragment Emission

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

“…However, in agreement with an earlier theory [9], complex fragment emission from a compound nucleus has been observed at very small incident energies, below 50 Me V total center-of-mass energy, albeit with very low (submicrobarn) cross-sections [10][11][12]. Furthermore, in a series of experiments starting at this low energy and continuing to 30 MeV/u, it has been verified that the decay of an equilibrated compound nucleus can account for the major production of complex fragments in a process akin to fission [13].…”

Heavy residues from very mass-asymmetric heavy-ion reactions

“…The line following the average Z value for each isobar is comparable to the ridge in the isotopic cross section distribution from the current data set. Similar energy 12 C + 107 -109 Ag reactions have been studied using 1-ray spectroscopy [28]. This allows a comparison between the 12 C + Ag data and the present 129 Xe + C data.…”

Complex fragment emission at intermediate energies

“…At low bombarding energies (EfA < 10 MeV), complex fragment emission has been characterized as the statistical-binary decay of a classical compound nucleus formed in a complete fusion reaction (1,2). The yields of these fragments reflect the conditional barriers associated with the potential energy surface of the compound nucleus.…”