Nuclear disassembly time scales using space-time correlations

The lifetime, τ, with respect to multifragmentation of highly excited nuclei is deduced from the analysis of strongly damped Pb + Au collisions at 29 MeV/u. The method is based on the study of space-time correlations induced by “proximity” effects between fragments emitted by the two primary product...

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Bibliographic Details
Published in:Physics letters. B 1995-02, Vol.345 (4), p.397-402
Main Authors: Durand, D., Colin, J., Lecolley, J.F., Meslin, C., Aboufirassi, M., Bilwes, B., Bougault, R., Brou, R., Cosmo, F., Galin, J., Genoux-Lubain, A., Guerreau, D., Horn, D., Jacquet, D., Laville, J.L., Le Brun, C., Lopez, O., Louvel, M., Mahi, M., Morjean, M., Péghaire, A., Rudolf, G., Scheibling, F., Steckmeyer, J.C., Stuttgé, L., Tamain, B., Tomasevic, S.
Format: Article
Language:English
Subjects:
Nuclear Experiment
Physics
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Summary:The lifetime, τ, with respect to multifragmentation of highly excited nuclei is deduced from the analysis of strongly damped Pb + Au collisions at 29 MeV/u. The method is based on the study of space-time correlations induced by “proximity” effects between fragments emitted by the two primary products of the reaction and gives the time between the reseparation of the two primary products and the subsequent multifragment decay of one partner. A lifetime significantly longer than the interaction time is found. It is compared with time scales corresponding to different types of dynamical instabilities which may be responsible for nuclear disassembly.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(94)01582-W