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Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model

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Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model

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Título Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model
Autor Souza, Sergio Ricardo de Azevedo
Carlson, Brett Vern
Donangelo, Raul José
Lynch, William G.
Tsang, M. B.
Abstract The generalized Fermi breakup model, recently demonstrated to be formally equivalent to the statistical multifragmentation model, if the contribution of excited states is included in the state densities of the former, is implemented. Because this treatment requires application of the statistical multifragmentation model repeatedly on hot fragments until they have decayed to their ground states, it becomes extremely computationally demanding, making its application to the systems of interest extremely difficult. Based on exact recursion formulas previously developed by Chase and Mekjian to calculate statistical weights very efficiently, we present an implementation which is efficient enough to allow it to be applied to large systems at high excitation energies. Comparison with the GEMINI++ sequential decay code and the Weisskopf-Ewing evaporation model shows that the predictions obtained with our treatment are fairly similar to those obtained with these more traditional models.
Contido em Physical review. C, Nuclear physics. Melville. Vol. 88, no. 1 (July. 2013), 014607, 8 p.
Assunto Densidade nuclear
Fragmentação nuclear
Níveis nucleares de energia
Origem Estrangeiro
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/104182
Arquivos Descrição Formato
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