New insights into triaxiality and shape coexistence from odd-mass Rh-109

Rapid shape evolutions near A = 100 are now the focus of much attention in nuclear science. Much of the recent work has been centered on isotopes with Z <= 40, where the shapes are observed to transition between near-spherical to highly deformed with only a single pair of neutrons added. At highe...

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Detalles Bibliográficos
Autores: Fraile Prieto, Luis Mario, otros, ...
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/13291
Acceso en línea:https://hdl.handle.net/20.500.14352/13291
Access Level:acceso abierto
Palabra clave:539.1
Neutron-rich nuclei
Picosecond lifetime measurements
High-spin structure
Electromagnetic properties
Intruder states
Isotopes
Evolution
HO-165
Bands
Física nuclear
2207 Física Atómica y Nuclear
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oai_identifier_str oai:docta.ucm.es:20.500.14352/13291
network_acronym_str ES
network_name_str España
repository_id_str
spelling New insights into triaxiality and shape coexistence from odd-mass Rh-109Fraile Prieto, Luis Mariootros, ...539.1Neutron-rich nucleiPicosecond lifetime measurementsHigh-spin structureElectromagnetic propertiesIntruder statesIsotopesEvolutionHO-165BandsFísica nuclear2207 Física Atómica y NuclearRapid shape evolutions near A = 100 are now the focus of much attention in nuclear science. Much of the recent work has been centered on isotopes with Z <= 40, where the shapes are observed to transition between near-spherical to highly deformed with only a single pair of neutrons added. At higher Z, the shape transitions become more gradual as triaxiality sets in, yet the coexistence of varying shapes continues to play an important role in the low-energy nuclear structure, particularly in the odd-Z isotopes. This work aims to characterize competing shapes in the triaxial region between Zr and Sn isotopes using ultrafast timing techniques to measure lifetimes of excited states in the neutron-rich nucleus Rh-109. The measurements confirm the persistence at higher Z of similarly large deformations observed near Z = 40. Moreover, we show that new self-consistent mean-field calculations, with proper treatment of the odd nucleon, are able to reproduce the coexisting triaxial and highly deformed configurations revealing, for the first time, the important contribution of the unpaired nucleon to these different shapes based on the blocking of specific single-particle orbitals.American Physical SocietyUniversidad Complutense de Madrid20182018-12-2020182018-12-20journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/13291reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/132912026-06-02T12:44:21Z
dc.title.none.fl_str_mv New insights into triaxiality and shape coexistence from odd-mass Rh-109
title New insights into triaxiality and shape coexistence from odd-mass Rh-109
spellingShingle New insights into triaxiality and shape coexistence from odd-mass Rh-109
Fraile Prieto, Luis Mario
539.1
Neutron-rich nuclei
Picosecond lifetime measurements
High-spin structure
Electromagnetic properties
Intruder states
Isotopes
Evolution
HO-165
Bands
Física nuclear
2207 Física Atómica y Nuclear
title_short New insights into triaxiality and shape coexistence from odd-mass Rh-109
title_full New insights into triaxiality and shape coexistence from odd-mass Rh-109
title_fullStr New insights into triaxiality and shape coexistence from odd-mass Rh-109
title_full_unstemmed New insights into triaxiality and shape coexistence from odd-mass Rh-109
title_sort New insights into triaxiality and shape coexistence from odd-mass Rh-109
dc.creator.none.fl_str_mv Fraile Prieto, Luis Mario
otros, ...
author Fraile Prieto, Luis Mario
author_facet Fraile Prieto, Luis Mario
otros, ...
author_role author
author2 otros, ...
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Neutron-rich nuclei
Picosecond lifetime measurements
High-spin structure
Electromagnetic properties
Intruder states
Isotopes
Evolution
HO-165
Bands
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Neutron-rich nuclei
Picosecond lifetime measurements
High-spin structure
Electromagnetic properties
Intruder states
Isotopes
Evolution
HO-165
Bands
Física nuclear
2207 Física Atómica y Nuclear
description Rapid shape evolutions near A = 100 are now the focus of much attention in nuclear science. Much of the recent work has been centered on isotopes with Z <= 40, where the shapes are observed to transition between near-spherical to highly deformed with only a single pair of neutrons added. At higher Z, the shape transitions become more gradual as triaxiality sets in, yet the coexistence of varying shapes continues to play an important role in the low-energy nuclear structure, particularly in the odd-Z isotopes. This work aims to characterize competing shapes in the triaxial region between Zr and Sn isotopes using ultrafast timing techniques to measure lifetimes of excited states in the neutron-rich nucleus Rh-109. The measurements confirm the persistence at higher Z of similarly large deformations observed near Z = 40. Moreover, we show that new self-consistent mean-field calculations, with proper treatment of the odd nucleon, are able to reproduce the coexisting triaxial and highly deformed configurations revealing, for the first time, the important contribution of the unpaired nucleon to these different shapes based on the blocking of specific single-particle orbitals.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-12-20
2018
2018-12-20
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/13291
url https://hdl.handle.net/20.500.14352/13291
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
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
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:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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