Axial and triaxial degrees of freedom in 72Zn

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM

Detalles Bibliográficos
Autores: Hellgartner, S., Egido de los Ríos, José Luis
Tipo de recurso: artículo
Fecha de publicación:2023
País:España
Institución:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/715912
Acceso en línea:http://hdl.handle.net/10486/715912
https://dx.doi.org/10.1016/j.physletb.2023.137933
Access Level:acceso abierto
Palabra clave:Multiple Coulomb excitation
N=40 sub-shell closure
triaxiality
72 Zn
Física
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spelling Axial and triaxial degrees of freedom in 72ZnHellgartner, S.Egido de los Ríos, José LuisMultiple Coulomb excitationN=40 sub-shell closuretriaxiality72 ZnFísicaArtículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMThe unstable N=42 nucleus 72Zn has been studied using multiple safe Coulomb excitation in inverse kinematics. The experiment was performed at the REX-ISOLDE facility at CERN making first use of the silicon detector array C-REX in combination with the γ-ray spectrometer Miniball. The high angular coverage of C-REX allowed to determine the reduced transition strengths for the decay of the yrast 01+, 21+ and 41+ as well as of the 02+ and 22+ states in 72Zn. The quadrupole moments of the 21+, 41+ and 22+ states were extracted. Using model independent quadrupole invariants, the ground state of 72Zn was found to have an average deformation in the γ degree of freedom close to maximum triaxiality. In comparison to experimental data in zinc isotopes with N<40, the collectivity of the 41+ state in neutron-rich 72Zn is significantly larger, indicating a collective yrast band based on the ground state of 72Zn. In contrast, a low experimental B(E2;02+→21+) strength was determined, indicating a different structure for the 02+ state. Shell-model calculations propose a 02+ state featuring a larger fraction of the (spherical) N=40 closed-shell configuration in its wave function than for the 01+ ground state. The results were also compared with beyond mean field calculations which corroborate the large deformation in the γ degree of freedom, while pointing to a more deformed 02+ state. These experimental and theoretical findings establish the importance of the γ degree of freedom in the ground state of 72Zn, located between the 68,70Ni nuclei that have spherical ground states, and 76Ge, which has a rigid triaxial shapeThis work was supported by the German BMBF under grant numbers (05P12 WOFNF, 05P12PKFNE), by the DFG (EXC 153) and by ENSAR. D.M. acknowledges the support from NSERC. K.W. acknowledges the support from the Spanish Ministerio de Economía y Competitividad RYC-2017-22007. M.S. acknowledges support from the UK-STFC (grant ST/P005101/1)Elsevier B.V.Departamento de Física TeóricaFacultad de Ciencias20232023-06-10research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/715912https://dx.doi.org/10.1016/j.physletb.2023.137933reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7159122026-06-23T12:46:27Z
dc.title.none.fl_str_mv Axial and triaxial degrees of freedom in 72Zn
title Axial and triaxial degrees of freedom in 72Zn
spellingShingle Axial and triaxial degrees of freedom in 72Zn
Hellgartner, S.
Multiple Coulomb excitation
N=40 sub-shell closure
triaxiality
72 Zn
Física
title_short Axial and triaxial degrees of freedom in 72Zn
title_full Axial and triaxial degrees of freedom in 72Zn
title_fullStr Axial and triaxial degrees of freedom in 72Zn
title_full_unstemmed Axial and triaxial degrees of freedom in 72Zn
title_sort Axial and triaxial degrees of freedom in 72Zn
dc.creator.none.fl_str_mv Hellgartner, S.
Egido de los Ríos, José Luis
author Hellgartner, S.
author_facet Hellgartner, S.
Egido de los Ríos, José Luis
author_role author
author2 Egido de los Ríos, José Luis
author2_role author
dc.contributor.none.fl_str_mv Departamento de Física Teórica
Facultad de Ciencias
dc.subject.none.fl_str_mv Multiple Coulomb excitation
N=40 sub-shell closure
triaxiality
72 Zn
Física
topic Multiple Coulomb excitation
N=40 sub-shell closure
triaxiality
72 Zn
Física
description Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-06-10
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
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/10486/715912
https://dx.doi.org/10.1016/j.physletb.2023.137933
url http://hdl.handle.net/10486/715912
https://dx.doi.org/10.1016/j.physletb.2023.137933
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
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
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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