Abstract
Mass and charge distribution of the cross-section for the fission fragments obtained in the decay of hot and rotating compound system formed in the reaction 48Ca + 162Dy → 210Rn* at an incident energy 139.6 MeV has been calculated using the dynamical cluster-decay model. Isotopic composition for each element belonging to the symmetric mass region has been obtained. The shell closure at N=50 for light and at Z=50 for heavy mass binary fragments gives a deep minima in the fragmentation potential at touching configuration and governs the fission partition of the compound system. The fission fragments of the symmetric mass region have their dominating presence along with strong odd-even staggering i.e., even-Z fission fragments are more probable than the odd ones, similar to the observed trends of the yield.
Highlights
It is well known that the most probable outcomes of the low-energy heavy-ion reactions with massive nuclei are quasi-fission and fusion-fission
Mass and charge distribution of the cross-section for the fission fragments obtained in the decay of hot and rotating compound system formed in the reaction 48Ca + 162Dy → 210Rn* at an incident energy 139.6 MeV has been calculated using the dynamical cluster-decay model
Such is a huge transfer of 38 nucleons and the probability of the most probable channel being close to the other fission channels of the symmetric mass region indicates that the reaction must have proceeded through the compound nucleus reaction mechanism, with a small contribution of the quasi-fission due to the shell closures at N and Z=50
Summary
It is well known that the most probable outcomes of the low-energy heavy-ion reactions with massive nuclei are quasi-fission and fusion-fission. Both these processes inhibit the formation of a compound nucleus and their knowledge is important for the selection of a suitable path for the synthesis of heavy or superheavy nuclei. The outcome of a low energy heavy-ion reaction depends on the properties of the incoming channel like incident energy, angular momentum, mass asymmetry, isospin asymmetry, shell structure, etc. A qualitative analysis of both mass and charge distribution of the cross-section of the fission fragments of a hot and rotating compound system formed in 48Ca + 162Dy → 210Rn* reaction at 139.6 MeV has been done using the dynamical cluster-decay
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
