Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional

The quadrupole-octupole coupling and the related spectroscopic properties have been studied for the even-even light actinides 218–238 Ra and 220–240 Th. The Hartree-Fock-Bogoliubov approximation, based on the Gogny-D1M energy density functional, has been employed as a microscopic input, i.e., to obt...

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Autores: Nomura, Kosuke, Rodríguez-Guzmán, Rayner, Robledo, Luis Miguel, Humadi, Y.M., García Ramos, José Enrique
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/19281
Acceso en línea:http://hdl.handle.net/10272/19281
Access Level:acceso abierto
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spelling Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functionalNomura, KosukeRodríguez-Guzmán, RaynerRobledo, Luis MiguelHumadi, Y.M.García Ramos, José EnriqueThe quadrupole-octupole coupling and the related spectroscopic properties have been studied for the even-even light actinides 218–238 Ra and 220–240 Th. The Hartree-Fock-Bogoliubov approximation, based on the Gogny-D1M energy density functional, has been employed as a microscopic input, i.e., to obtain (axially symmetric) mean-field potential energy surfaces as functions of the quadrupole and octupole deformation parameters. The mean-field potential energy surfaces have been mapped onto the corresponding bosonic potential energy surfaces using the expectation value of the sdf interacting boson model (IBM) Hamiltonian in the boson condensate state. The strength parameters of the sdf IBM Hamiltonian have been determined via this mapping procedure. The diagonalization of the mapped IBM Hamiltonian provides energies for positive- and negative-parity states as well as wave functions which are employed to obtain transitional strengths. The results of the calculations compare well with available data from Coulomb excitation experiments and point towards a pronounced octupole collectivity around 224 Ra and 226 Th.American Physical Society20202020-12-0120202020-12-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/19281reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/192812026-06-02T14:58:11Z
dc.title.none.fl_str_mv Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
title Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
spellingShingle Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
Nomura, Kosuke
title_short Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
title_full Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
title_fullStr Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
title_full_unstemmed Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
title_sort Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional
dc.creator.none.fl_str_mv Nomura, Kosuke
Rodríguez-Guzmán, Rayner
Robledo, Luis Miguel
Humadi, Y.M.
García Ramos, José Enrique
author Nomura, Kosuke
author_facet Nomura, Kosuke
Rodríguez-Guzmán, Rayner
Robledo, Luis Miguel
Humadi, Y.M.
García Ramos, José Enrique
author_role author
author2 Rodríguez-Guzmán, Rayner
Robledo, Luis Miguel
Humadi, Y.M.
García Ramos, José Enrique
author2_role author
author
author
author
dc.contributor.none.fl_str_mv
description The quadrupole-octupole coupling and the related spectroscopic properties have been studied for the even-even light actinides 218–238 Ra and 220–240 Th. The Hartree-Fock-Bogoliubov approximation, based on the Gogny-D1M energy density functional, has been employed as a microscopic input, i.e., to obtain (axially symmetric) mean-field potential energy surfaces as functions of the quadrupole and octupole deformation parameters. The mean-field potential energy surfaces have been mapped onto the corresponding bosonic potential energy surfaces using the expectation value of the sdf interacting boson model (IBM) Hamiltonian in the boson condensate state. The strength parameters of the sdf IBM Hamiltonian have been determined via this mapping procedure. The diagonalization of the mapped IBM Hamiltonian provides energies for positive- and negative-parity states as well as wave functions which are employed to obtain transitional strengths. The results of the calculations compare well with available data from Coulomb excitation experiments and point towards a pronounced octupole collectivity around 224 Ra and 226 Th.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-12-01
2020
2020-12-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/19281
url http://hdl.handle.net/10272/19281
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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