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- Title
FISSION FRAGMENT MASS AND KINETIC ENERGY YIELDS OF FERMIUM ISOTOPES.
- Authors
Pomorski, K.; Dobrowolski, A.; Nerlo-Pomorska, B.; Warda, M.; Zdeb, A.
- Abstract
A rapidly converging 4-dimensional Fourier shape parametrization is used to model the fission process of heavy nuclei. Potential energy landscapes are computed within the macroscopic–microscopic approach, on top of which the multi-dimensional Langevin equation is solved to describe the fission dynamics. Charge equilibration at scission and de-excitation by neutron evaporation of the primary fragments after scission is investigated. The model describes various observables, including fission-fragment mass, charge, and kinetic energy yields, as well as post-scission neutron multiplicities and, most importantly, their correlations, which are crucial to unravel the complexity of the fission process. The parameters of the dynamical model were tuned to reproduce experimental data obtained from thermal neutron-induced fission of 235U, which allows us to discuss the transition from asymmetric to symmetric fission along the Fm isotopic chain.
- Subjects
KINETIC energy; HEAVY nuclei; NEUTRON multiplicity; LANGEVIN equations; ISOTOPES; THERMAL neutrons
- Publication
Acta Physica Polonica B, 2023, Vol 54, Issue 9, p1
- ISSN
0587-4254
- Publication type
Article
- DOI
10.5506/APhysPolB.54.9-A2