Analysis of fusion–fission dynamics by pre-scission neutron emission in 58Ni + 208Pb system

✍ Scribed by Y. Aritomo; M. Ohta; T. Materna; F. Hanappe; O. Dorvaux; L. Stuttge

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 794 KB
• Volume: 759
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2005.05.155

✦ Synopsis

We analyzed the experimental data of the pre-scission neutron multiplicity in connection with fission fragments in the reaction 58 Ni + 208 Pb at the incident energy corresponding to the excitation energy of the compound nucleus E * = 185.9 MeV, which was performed by DéMoN group. The relation between the pre-scission neutron multiplicity and each reaction process having different reaction time is investigated. In order to study the fusion-fission process accompanied by neutron emission, the fluctuation-dissipation model combined with a statistical model is employed. It is found that the fusion-fission process and the quasi-fission process are clearly distinguished in correlation with the pre-scission neutron multiplicity.