From binary fission to multifragmentation in the decay of heavy excited nuclei

The decay modes of heavy excited nuclei formed in dissipative collisions for the systems Ar + Au at 60 MeV/u and Kr + Au at 43 MeV/u are studied. A transition from binary fission towards multi-fragment emission is observed around 3 MeV/u excitation energy, independently of the considered system. The...

Full description

Saved in:
Bibliographic Details
Published in:Physics letters. B 1993-03, Vol.302 (2), p.162-166
Main Authors: Bizard, G., Bougault, R., Brou, R., Colin, J., Durand, D., Genoux-Lubain, A., Laville, J.L., Le Brun, C., Lecolley, J.F., Louvel, M., Péter, J., Steckmeyer, J.C., Tamain, B., Badala, A., Motobayashi, T., Rudolf, G., Stuttgé, L.
Format: Article
Language:English
Subjects:
Nuclear Experiment
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The decay modes of heavy excited nuclei formed in dissipative collisions for the systems Ar + Au at 60 MeV/u and Kr + Au at 43 MeV/u are studied. A transition from binary fission towards multi-fragment emission is observed around 3 MeV/u excitation energy, independently of the considered system. The charge distributions of the three target-emitted fragments suggest a smooth change from “fission” events (as a “natural” continuity of binary fission) to “residue production” then to “symmetric ternary fragmentation” events when the excitation energy increases from 3 MeV/u to 5 MeV/u.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(93)90377-T