Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/104182 |
Resumo: | 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. |
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Souza, Sergio Ricardo de AzevedoCarlson, Brett VernDonangelo, Raul JoséLynch, William G.Tsang, M. B.2014-10-04T02:13:44Z20130556-2813http://hdl.handle.net/10183/104182000898770The 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.application/pdfengPhysical review. C, Nuclear physics. Melville. Vol. 88, no. 1 (July. 2013), 014607, 8 p.Fragmentação nuclearDensidade nuclearNíveis nucleares de energiaStatistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the modelEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000898770.pdf000898770.pdfTexto completo (inglês)application/pdf1585175http://www.lume.ufrgs.br/bitstream/10183/104182/1/000898770.pdfee6539a90a70ef120d9a9c71d7051e41MD51TEXT000898770.pdf.txt000898770.pdf.txtExtracted Texttext/plain34070http://www.lume.ufrgs.br/bitstream/10183/104182/2/000898770.pdf.txt19ddc5535d7700833376176beead3deeMD52THUMBNAIL000898770.pdf.jpg000898770.pdf.jpgGenerated Thumbnailimage/jpeg2169http://www.lume.ufrgs.br/bitstream/10183/104182/3/000898770.pdf.jpg9e8999a4d677f54c8c2ab503c0fcd15cMD5310183/1041822018-10-08 08:53:48.738oai:www.lume.ufrgs.br:10183/104182Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-08T11:53:48Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
title |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
spellingShingle |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model Souza, Sergio Ricardo de Azevedo Fragmentação nuclear Densidade nuclear Níveis nucleares de energia |
title_short |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
title_full |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
title_fullStr |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
title_full_unstemmed |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
title_sort |
Statistical multifragmentation model with discretized energy and the generalized Fermi breakup : formulation of the model |
author |
Souza, Sergio Ricardo de Azevedo |
author_facet |
Souza, Sergio Ricardo de Azevedo Carlson, Brett Vern Donangelo, Raul José Lynch, William G. Tsang, M. B. |
author_role |
author |
author2 |
Carlson, Brett Vern Donangelo, Raul José Lynch, William G. Tsang, M. B. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Souza, Sergio Ricardo de Azevedo Carlson, Brett Vern Donangelo, Raul José Lynch, William G. Tsang, M. B. |
dc.subject.por.fl_str_mv |
Fragmentação nuclear Densidade nuclear Níveis nucleares de energia |
topic |
Fragmentação nuclear Densidade nuclear Níveis nucleares de energia |
description |
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. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2014-10-04T02:13:44Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/104182 |
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0556-2813 |
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000898770 |
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0556-2813 000898770 |
url |
http://hdl.handle.net/10183/104182 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. C, Nuclear physics. Melville. Vol. 88, no. 1 (July. 2013), 014607, 8 p. |
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info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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application/pdf |
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