Heavy ion induced fission reactions, code PN-III-P1-1.1-PD-2019-0304

Heavy ion induced fission reactions, code PN-III-P1-1.1-PD-2019-0304.

Project summary:

The project is aimed at the study of nucleus-nucleus collisions.
The proposed objectives are: the calculation of the mass and charge distributions resulting from heavy-ion collisions; the study of the charge polarisation of the fission fragments; the study of the angular momentum distribution of the fission fragments; the study of the effect of the shell corrections on the fission process, as well as the study of the effect of the excitation energy on the shell correctional; the study of a possible correlation between the mass, charge distribution of the fission fragments and the angular momentum distribution; the study of the total kinetic energy of the fission fragments and bimodality.
The project is based on an existing theoretical model, which was successfully applied in the study of spontaneous fission, fotofission and light particle induced fission. The model was applied to different fissioning systems, from preactinides and actinides (where there is a plethora of experimental data), as well as to the study of the fission of heavy and superheavy nuclei (where the experimental data is rather lacking), and predictions were made regarding different fission observables.
The purpose of this project is the improvement of the existing model for the application to the nucleus-nucleus collisions at different bombarding energies.

Duration: 24 months (01.09.2020 - 31.08.2022).

Project director: univ.lect. Horia Pasca.

Total funding for the project: 232.702,00 lei.

Published articles within the project:

  • H. Pașca, et al, "Examination of coexistence of symmetric mass and asymmetric charge distributions of fission fragments", Phys. Rev. C101(2020)064604, DOI: 10.1103/PhysRevC.101.064604
  • H. Pașca et. al. - „Simultaneous description of charge, mass, total kinetic energy, and neutron multiplicity distributions in fission of Th and U isotopes” - Phys. Rev. C, 2021, 104(1), 014604
  • H. Pașca et. al. - „Correlation between transition from symmetric to asymmetric fission and average neutron multiplicity and TKE” – sent for publishing, November 2021, Phys. Rev. C, resent in July 2022.

The scientific report can be found here.