Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30953 |
Resumo: | We present finite-temperature Dirac-Hartree-Bogoliubov (FTDHB) calculations for the tin isotope chain to study the dependence of pseudospin on the nuclear temperature. In the FTDHB calculation, the density dependence of the self-consistent relativistic mean fields, the pairing, and the vapor phase that takes into account the unbound nucleon states are considered self-consistently. The mean-field potentials obtained in the FTDHB calculations are fit by Woods-Saxon (WS) potentials to examine how the WS parameters are related to the energy splitting of the pseudospin pairs as the temperature increases. We find that the nuclear potential surface diffuseness is the main driver for the pseudospin splittings and that it increases as the temperature grows. We conclude that pseudospin symmetry is better realized when the nuclear temperature increases. The results confirm the findings of previous works using relativistic mean field theory at T = 0, namely that the correlation between the pseudospin splitting and the parameters of the Woods-Saxon potentials implies that pseudospin symmetry is a dynamical symmetry in nuclei. We show that the dynamical nature of the pseudospin symmetry remains when the temperature is considered in a realistic calculation of the tin isotopes, such as that of the Dirac-Hartree-Bogoliubov formalism |
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Lisboa, Ronai MachadoAlberto, P.Carlson, B. V.Malheiro, M.2020-12-11T13:40:05Z2020-12-11T13:40:05Z2017LISBOA, R.; ALBERTO, P.; CARLSON, B. V.; MALHEIRO, M.. Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism. Physical Review C, [S.L.], v. 96, n. 5, p. 054306-054306, 8 nov. 2017. Disponível em: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.054306. Acesso em: 30 set. 2020. http://dx.doi.org/10.1103/physrevc.96.054306.2469-99852469-9993https://repositorio.ufrn.br/handle/123456789/3095310.1103/PhysRevC.96.054306American Physical SocietyTemperature effectsNuclear pseudospin symmetryDirac-Hartree-Bogoliubov formalismTemperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalisminfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleWe present finite-temperature Dirac-Hartree-Bogoliubov (FTDHB) calculations for the tin isotope chain to study the dependence of pseudospin on the nuclear temperature. In the FTDHB calculation, the density dependence of the self-consistent relativistic mean fields, the pairing, and the vapor phase that takes into account the unbound nucleon states are considered self-consistently. The mean-field potentials obtained in the FTDHB calculations are fit by Woods-Saxon (WS) potentials to examine how the WS parameters are related to the energy splitting of the pseudospin pairs as the temperature increases. We find that the nuclear potential surface diffuseness is the main driver for the pseudospin splittings and that it increases as the temperature grows. We conclude that pseudospin symmetry is better realized when the nuclear temperature increases. The results confirm the findings of previous works using relativistic mean field theory at T = 0, namely that the correlation between the pseudospin splitting and the parameters of the Woods-Saxon potentials implies that pseudospin symmetry is a dynamical symmetry in nuclei. We show that the dynamical nature of the pseudospin symmetry remains when the temperature is considered in a realistic calculation of the tin isotopes, such as that of the Dirac-Hartree-Bogoliubov formalismporreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALTemperatureEffectsNuclear_LISBOA_2017.pdfTemperatureEffectsNuclear_LISBOA_2017.pdfapplication/pdf374381https://repositorio.ufrn.br/bitstream/123456789/30953/1/TemperatureEffectsNuclear_LISBOA_2017.pdfa8ea064f1b3e3073f461b923f8f7242bMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30953/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTTemperatureEffectsNuclear_LISBOA_2017.pdf.txtTemperatureEffectsNuclear_LISBOA_2017.pdf.txtExtracted texttext/plain48914https://repositorio.ufrn.br/bitstream/123456789/30953/3/TemperatureEffectsNuclear_LISBOA_2017.pdf.txte48a0f2ef27d32bbc70d8d2bb127eabfMD53THUMBNAILTemperatureEffectsNuclear_LISBOA_2017.pdf.jpgTemperatureEffectsNuclear_LISBOA_2017.pdf.jpgGenerated Thumbnailimage/jpeg1756https://repositorio.ufrn.br/bitstream/123456789/30953/4/TemperatureEffectsNuclear_LISBOA_2017.pdf.jpgb8eb1e999d7d0d4c3c7d9f273483f4e1MD54123456789/309532020-12-13 05:01:40.217oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-12-13T08:01:40Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
title |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
spellingShingle |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism Lisboa, Ronai Machado Temperature effects Nuclear pseudospin symmetry Dirac-Hartree-Bogoliubov formalism |
title_short |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
title_full |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
title_fullStr |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
title_full_unstemmed |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
title_sort |
Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism |
author |
Lisboa, Ronai Machado |
author_facet |
Lisboa, Ronai Machado Alberto, P. Carlson, B. V. Malheiro, M. |
author_role |
author |
author2 |
Alberto, P. Carlson, B. V. Malheiro, M. |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Lisboa, Ronai Machado Alberto, P. Carlson, B. V. Malheiro, M. |
dc.subject.por.fl_str_mv |
Temperature effects Nuclear pseudospin symmetry Dirac-Hartree-Bogoliubov formalism |
topic |
Temperature effects Nuclear pseudospin symmetry Dirac-Hartree-Bogoliubov formalism |
description |
We present finite-temperature Dirac-Hartree-Bogoliubov (FTDHB) calculations for the tin isotope chain to study the dependence of pseudospin on the nuclear temperature. In the FTDHB calculation, the density dependence of the self-consistent relativistic mean fields, the pairing, and the vapor phase that takes into account the unbound nucleon states are considered self-consistently. The mean-field potentials obtained in the FTDHB calculations are fit by Woods-Saxon (WS) potentials to examine how the WS parameters are related to the energy splitting of the pseudospin pairs as the temperature increases. We find that the nuclear potential surface diffuseness is the main driver for the pseudospin splittings and that it increases as the temperature grows. We conclude that pseudospin symmetry is better realized when the nuclear temperature increases. The results confirm the findings of previous works using relativistic mean field theory at T = 0, namely that the correlation between the pseudospin splitting and the parameters of the Woods-Saxon potentials implies that pseudospin symmetry is a dynamical symmetry in nuclei. We show that the dynamical nature of the pseudospin symmetry remains when the temperature is considered in a realistic calculation of the tin isotopes, such as that of the Dirac-Hartree-Bogoliubov formalism |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2020-12-11T13:40:05Z |
dc.date.available.fl_str_mv |
2020-12-11T13:40:05Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LISBOA, R.; ALBERTO, P.; CARLSON, B. V.; MALHEIRO, M.. Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism. Physical Review C, [S.L.], v. 96, n. 5, p. 054306-054306, 8 nov. 2017. Disponível em: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.054306. Acesso em: 30 set. 2020. http://dx.doi.org/10.1103/physrevc.96.054306. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30953 |
dc.identifier.issn.none.fl_str_mv |
2469-9985 2469-9993 |
dc.identifier.doi.none.fl_str_mv |
10.1103/PhysRevC.96.054306 |
identifier_str_mv |
LISBOA, R.; ALBERTO, P.; CARLSON, B. V.; MALHEIRO, M.. Temperature effects on nuclear pseudospin symmetry in the Dirac-Hartree-Bogoliubov formalism. Physical Review C, [S.L.], v. 96, n. 5, p. 054306-054306, 8 nov. 2017. Disponível em: https://journals.aps.org/prc/abstract/10.1103/PhysRevC.96.054306. Acesso em: 30 set. 2020. http://dx.doi.org/10.1103/physrevc.96.054306. 2469-9985 2469-9993 10.1103/PhysRevC.96.054306 |
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https://repositorio.ufrn.br/handle/123456789/30953 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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American Physical Society |
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American Physical Society |
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