Influence of secondary decay on odd-even staggering of fragment cross sections
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/10183/104195 |
Resumo: | Odd-even staggering (OES) appears inmany areas of nuclear physics and is generally associated with the pairing term in the nuclear binding energy. To explore this effect, we use the improved statistical multifragmentation model to populate an ensemble of hot primary fragments, which are then de-excited using the Weisskopf-Ewing statistical emission formalism. The yields are then compared to experimental data. Our results show that, before secondary decay, OES appears only in the yields of even mass fragments and not in the yields of odd mass fragments. De-excitation of the hot fragments must be taken into account to describe the data, suggesting that the OES in fragment yields is a useful criterion for validating or adjusting theoretical de-excitation models. |
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Winkelbauer, J. R.Souza, Sergio Ricardo de AzevedoTsang, M. B.2014-10-04T02:14:17Z20130556-2813http://hdl.handle.net/10183/104195000905673Odd-even staggering (OES) appears inmany areas of nuclear physics and is generally associated with the pairing term in the nuclear binding energy. To explore this effect, we use the improved statistical multifragmentation model to populate an ensemble of hot primary fragments, which are then de-excited using the Weisskopf-Ewing statistical emission formalism. The yields are then compared to experimental data. Our results show that, before secondary decay, OES appears only in the yields of even mass fragments and not in the yields of odd mass fragments. De-excitation of the hot fragments must be taken into account to describe the data, suggesting that the OES in fragment yields is a useful criterion for validating or adjusting theoretical de-excitation models.application/pdfengPhysical review. C, Nuclear physics. Melville. Vol. 88, no. 4 (Oct. 2013), 044613, 5 p.Fragmentação nuclearEnergia de ligação nuclearInfluence of secondary decay on odd-even staggering of fragment cross sectionsEstrangeiroinfo: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:UFRGSORIGINAL000905673.pdf000905673.pdfTexto completo (inglês)application/pdf295767http://www.lume.ufrgs.br/bitstream/10183/104195/1/000905673.pdfcb0d84f8e8f5a333d17424d87f4d17ebMD51TEXT000905673.pdf.txt000905673.pdf.txtExtracted Texttext/plain23166http://www.lume.ufrgs.br/bitstream/10183/104195/2/000905673.pdf.txt06a290b2c7561b91e426679121e0d27dMD52THUMBNAIL000905673.pdf.jpg000905673.pdf.jpgGenerated Thumbnailimage/jpeg2074http://www.lume.ufrgs.br/bitstream/10183/104195/3/000905673.pdf.jpg37232d6f81ebcd01117c12443ba115daMD5310183/1041952018-10-08 08:58:31.969oai:www.lume.ufrgs.br:10183/104195Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-08T11:58:31Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Influence of secondary decay on odd-even staggering of fragment cross sections |
title |
Influence of secondary decay on odd-even staggering of fragment cross sections |
spellingShingle |
Influence of secondary decay on odd-even staggering of fragment cross sections Winkelbauer, J. R. Fragmentação nuclear Energia de ligação nuclear |
title_short |
Influence of secondary decay on odd-even staggering of fragment cross sections |
title_full |
Influence of secondary decay on odd-even staggering of fragment cross sections |
title_fullStr |
Influence of secondary decay on odd-even staggering of fragment cross sections |
title_full_unstemmed |
Influence of secondary decay on odd-even staggering of fragment cross sections |
title_sort |
Influence of secondary decay on odd-even staggering of fragment cross sections |
author |
Winkelbauer, J. R. |
author_facet |
Winkelbauer, J. R. Souza, Sergio Ricardo de Azevedo Tsang, M. B. |
author_role |
author |
author2 |
Souza, Sergio Ricardo de Azevedo Tsang, M. B. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Winkelbauer, J. R. Souza, Sergio Ricardo de Azevedo Tsang, M. B. |
dc.subject.por.fl_str_mv |
Fragmentação nuclear Energia de ligação nuclear |
topic |
Fragmentação nuclear Energia de ligação nuclear |
description |
Odd-even staggering (OES) appears inmany areas of nuclear physics and is generally associated with the pairing term in the nuclear binding energy. To explore this effect, we use the improved statistical multifragmentation model to populate an ensemble of hot primary fragments, which are then de-excited using the Weisskopf-Ewing statistical emission formalism. The yields are then compared to experimental data. Our results show that, before secondary decay, OES appears only in the yields of even mass fragments and not in the yields of odd mass fragments. De-excitation of the hot fragments must be taken into account to describe the data, suggesting that the OES in fragment yields is a useful criterion for validating or adjusting theoretical de-excitation models. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013 |
dc.date.accessioned.fl_str_mv |
2014-10-04T02:14:17Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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article |
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http://hdl.handle.net/10183/104195 |
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0556-2813 |
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000905673 |
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http://hdl.handle.net/10183/104195 |
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eng |
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eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Physical review. C, Nuclear physics. Melville. Vol. 88, no. 4 (Oct. 2013), 044613, 5 p. |
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openAccess |
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