Isospin effects and the density dependence of the nuclear symmetry energy

Detalhes bibliográficos
Autor(a) principal: Souza, Sergio Ricardo de Azevedo
Data de Publicação: 2009
Outros Autores: Tsang, M. B., Carlson, Brett Vern, Donangelo, Raul José, Lynch, William G., Steiner, Andrew W.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104180
Resumo: The density dependence of the nuclear symmetry energy is inspected using the statistical multifragmentation model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite temperature at the freeze-out stage. By selecting parametrizations of the Skyrme force that lead to very different equations of state for the symmetry energy, we investigate the sensitivity of the isoscaling parameter and the isotopic distributions to differences in the symmetry energy. Our results suggest that, in spite of being sensitive to the thermal dilation of the fragments' volumes, it is difficult to distinguish among the Skyrme forces from the isoscaling analysis. On the other hand, the isotopic distribution of the emitted fragments turns out to be very sensitive to the force employed in the calculation.
id UFRGS-2_aead2477fdbbf19c4b70a5d74ed97418
oai_identifier_str oai:www.lume.ufrgs.br:10183/104180
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Souza, Sergio Ricardo de AzevedoTsang, M. B.Carlson, Brett VernDonangelo, Raul JoséLynch, William G.Steiner, Andrew W.2014-10-04T02:13:39Z20090556-2813http://hdl.handle.net/10183/104180000732284The density dependence of the nuclear symmetry energy is inspected using the statistical multifragmentation model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite temperature at the freeze-out stage. By selecting parametrizations of the Skyrme force that lead to very different equations of state for the symmetry energy, we investigate the sensitivity of the isoscaling parameter and the isotopic distributions to differences in the symmetry energy. Our results suggest that, in spite of being sensitive to the thermal dilation of the fragments' volumes, it is difficult to distinguish among the Skyrme forces from the isoscaling analysis. On the other hand, the isotopic distribution of the emitted fragments turns out to be very sensitive to the force employed in the calculation.application/pdfengPhysical review. C, Nuclear physics. Melville. Vol. 80, no. 4 (Oct. 2009), 041602, 5 p.Física nuclearReacoes nuclearesForcas nuclearesFragmentação nuclearIsospin nuclearDensidade nuclearEquações de estadoIsospin effects and the density dependence of the nuclear symmetry energyEstrangeiroinfo: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:UFRGSORIGINAL000732284.pdf000732284.pdfTexto completo (inglês)application/pdf261868http://www.lume.ufrgs.br/bitstream/10183/104180/1/000732284.pdf8777b072fa197b31e87223035da1b54eMD51TEXT000732284.pdf.txt000732284.pdf.txtExtracted Texttext/plain23702http://www.lume.ufrgs.br/bitstream/10183/104180/2/000732284.pdf.txt598ef8de3dec524b9b6cd9b3e0172b68MD52THUMBNAIL000732284.pdf.jpg000732284.pdf.jpgGenerated Thumbnailimage/jpeg2267http://www.lume.ufrgs.br/bitstream/10183/104180/3/000732284.pdf.jpg91a702ef84826fffd379cb9a6b652970MD5310183/1041802018-10-08 08:53:45.969oai:www.lume.ufrgs.br:10183/104180Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2018-10-08T11:53:45Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Isospin effects and the density dependence of the nuclear symmetry energy
title Isospin effects and the density dependence of the nuclear symmetry energy
spellingShingle Isospin effects and the density dependence of the nuclear symmetry energy
Souza, Sergio Ricardo de Azevedo
Física nuclear
Reacoes nucleares
Forcas nucleares
Fragmentação nuclear
Isospin nuclear
Densidade nuclear
Equações de estado
title_short Isospin effects and the density dependence of the nuclear symmetry energy
title_full Isospin effects and the density dependence of the nuclear symmetry energy
title_fullStr Isospin effects and the density dependence of the nuclear symmetry energy
title_full_unstemmed Isospin effects and the density dependence of the nuclear symmetry energy
title_sort Isospin effects and the density dependence of the nuclear symmetry energy
author Souza, Sergio Ricardo de Azevedo
author_facet Souza, Sergio Ricardo de Azevedo
Tsang, M. B.
Carlson, Brett Vern
Donangelo, Raul José
Lynch, William G.
Steiner, Andrew W.
author_role author
author2 Tsang, M. B.
Carlson, Brett Vern
Donangelo, Raul José
Lynch, William G.
Steiner, Andrew W.
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Souza, Sergio Ricardo de Azevedo
Tsang, M. B.
Carlson, Brett Vern
Donangelo, Raul José
Lynch, William G.
Steiner, Andrew W.
dc.subject.por.fl_str_mv Física nuclear
Reacoes nucleares
Forcas nucleares
Fragmentação nuclear
Isospin nuclear
Densidade nuclear
Equações de estado
topic Física nuclear
Reacoes nucleares
Forcas nucleares
Fragmentação nuclear
Isospin nuclear
Densidade nuclear
Equações de estado
description The density dependence of the nuclear symmetry energy is inspected using the statistical multifragmentation model with Skyrme effective interactions. The model consistently considers the expansion of the fragments' volumes at finite temperature at the freeze-out stage. By selecting parametrizations of the Skyrme force that lead to very different equations of state for the symmetry energy, we investigate the sensitivity of the isoscaling parameter and the isotopic distributions to differences in the symmetry energy. Our results suggest that, in spite of being sensitive to the thermal dilation of the fragments' volumes, it is difficult to distinguish among the Skyrme forces from the isoscaling analysis. On the other hand, the isotopic distribution of the emitted fragments turns out to be very sensitive to the force employed in the calculation.
publishDate 2009
dc.date.issued.fl_str_mv 2009
dc.date.accessioned.fl_str_mv 2014-10-04T02:13:39Z
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/10183/104180
dc.identifier.issn.pt_BR.fl_str_mv 0556-2813
dc.identifier.nrb.pt_BR.fl_str_mv 000732284
identifier_str_mv 0556-2813
000732284
url http://hdl.handle.net/10183/104180
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physical review. C, Nuclear physics. Melville. Vol. 80, no. 4 (Oct. 2009), 041602, 5 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/104180/1/000732284.pdf
http://www.lume.ufrgs.br/bitstream/10183/104180/2/000732284.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/104180/3/000732284.pdf.jpg
bitstream.checksum.fl_str_mv 8777b072fa197b31e87223035da1b54e
598ef8de3dec524b9b6cd9b3e0172b68
91a702ef84826fffd379cb9a6b652970
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1801224852092223488