Shell effects in fission and quasi-fission

Quantum shell effects are responsible for asymmetric fission. They are also expected to affect the formation of fission fragments in quasi-fission reactions occurring in heavy-ion collisions. Shell effects in fission are studied with the single-particle energy level density near the Fermi level. In par...

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Bibliographic Details
Published in:EPJ Web of conferences 2024-01, Vol.306, p.1019
Main Authors: Simenel, C., Bernard, R., Blanchon, G., Godbey, K., Lee, H., McGlynn, P., Umar, A.S.
Format: Article
Language:English
Subjects:
Fission quasifission
NUCLEAR PHYSICS AND RADIATION PHYSICS
shell effects
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Summary:Quantum shell effects are responsible for asymmetric fission. They are also expected to affect the formation of fission fragments in quasi-fission reactions occurring in heavy-ion collisions. Shell effects in fission are studied with the single-particle energy level density near the Fermi level. In particular, shell effects in the pre-fragments and their role in fixing the final mass asymmetry of the fission fragments are discussed. Systematic time-dependent Hartree-Fock simulations of heavy-ion collisions show that quasi-fission fragment properties share strong similarities with fragments formed in fission of the compound nuclei. This is an indication that similar shell effects are responsible for the final asymmtery in both mechanisms.
ISSN:2100-014X
2100-014X
DOI:10.1051/epjconf/202430601019