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Multifragmentation of charge asymmetric nuclear systems |
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| Affiliation: | 1. Human and Natural Sciences Center, ABC Federal University, Santo André, SP, Brazil;2. São Francisco University, Bragança Paulista, São Paulo, Brazil;3. Nuclear and Energy Research Institute, São Paulo, SP, Brazil;4. School of Chemical Engineering, University of Campinas, SP, Brazil;5. Brazilian Synchrotron Light Laboratory, Campinas, SP, Brazil;6. Department Quantum Phenomena in Novel Materials Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany;7. Department of Biochemistry, Institute of Biology, State University of Campinas, Campinas, SP, Brazil;8. Faculty of Dentistry São Leopoldo Mandic, Campinas, São Paulo, Brazil |
| Abstract: | The multifragmentation of excited spherical nuclear sources with various N/Z ratios and fixed mass number is studied within dynamical and statistical models. The dynamical model treats the multifragmentation process as a final stage of growth of density fluctuations in unstable expanding nuclear matter. The statistical model makes a choice of the final multifragment configuration according to its statistical weight at a global thermal equilibrium. Similarities and differences in the predictions of the two models on the isotopic composition of the produced fragments are presented and the most sensitive observable characteristics are discussed. |
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