Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129

The levels in Sn-129 populated from the beta(-) decay of In-129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2(+) state and the 3/2(+) ground state in 129Sn are expected to have configurations dominated by the neutron...

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Autores: Fraile Prieto, Luis Mario, Vedia Fernández, María Victoria, Ibáñez García, Paula Beatriz, Paziy, Vadym, Pérez Liva, Mailyn, Picado, E., Vidal, M.
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/24506
Acceso en línea:https://hdl.handle.net/20.500.14352/24506
Access Level:acceso abierto
Palabra clave:539.1
Picosecond lifetime measurements
Neutron rich nuclei
Física nuclear
2207 Física Atómica y Nuclear
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spelling Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129Fraile Prieto, Luis MarioVedia Fernández, María VictoriaIbáñez García, Paula BeatrizPaziy, VadymPérez Liva, MailynPicado, E.Vidal, M.539.1Picosecond lifetime measurementsNeutron rich nucleiFísica nuclear2207 Física Atómica y NuclearThe levels in Sn-129 populated from the beta(-) decay of In-129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2(+) state and the 3/2(+) ground state in 129Sn are expected to have configurations dominated by the neutron s(1/2) (l = 0) and d(3/2) (l = 2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow l-forbidden M1 transition. Using fast-timing spectroscopy we havemeasured the half-life of the 1/2(+) 315.3-keV state, T-1/2 = 19(10) ps, which corresponds to a moderately fast M1 transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and g factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured T-1/2 value by the renormalization of the M1 effective operator for neutron holes.Amer Physical SocUniversidad Complutense de Madrid20162016-04-0420162016-04-04journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/24506reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/245062026-06-02T12:44:21Z
dc.title.none.fl_str_mv Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
title Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
spellingShingle Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
Fraile Prieto, Luis Mario
539.1
Picosecond lifetime measurements
Neutron rich nuclei
Física nuclear
2207 Física Atómica y Nuclear
title_short Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
title_full Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
title_fullStr Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
title_full_unstemmed Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
title_sort Fast-timing study of the l-forbidden 1/2(+) -> 3/2(+) M1 transition in Sn-129
dc.creator.none.fl_str_mv Fraile Prieto, Luis Mario
Vedia Fernández, María Victoria
Ibáñez García, Paula Beatriz
Paziy, Vadym
Pérez Liva, Mailyn
Picado, E.
Vidal, M.
author Fraile Prieto, Luis Mario
author_facet Fraile Prieto, Luis Mario
Vedia Fernández, María Victoria
Ibáñez García, Paula Beatriz
Paziy, Vadym
Pérez Liva, Mailyn
Picado, E.
Vidal, M.
author_role author
author2 Vedia Fernández, María Victoria
Ibáñez García, Paula Beatriz
Paziy, Vadym
Pérez Liva, Mailyn
Picado, E.
Vidal, M.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Picosecond lifetime measurements
Neutron rich nuclei
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Picosecond lifetime measurements
Neutron rich nuclei
Física nuclear
2207 Física Atómica y Nuclear
description The levels in Sn-129 populated from the beta(-) decay of In-129 isomers were investigated at the ISOLDE facility of CERN using the newly commissioned ISOLDE Decay Station (IDS). The lowest 1/2(+) state and the 3/2(+) ground state in 129Sn are expected to have configurations dominated by the neutron s(1/2) (l = 0) and d(3/2) (l = 2) single-particle states, respectively. Consequently, these states should be connected by a somewhat slow l-forbidden M1 transition. Using fast-timing spectroscopy we havemeasured the half-life of the 1/2(+) 315.3-keV state, T-1/2 = 19(10) ps, which corresponds to a moderately fast M1 transition. Shell-model calculations using the CD-Bonn effective interaction, with standard effective charges and g factors, predict a 4-ns half-life for this level. We can reconcile the shell-model calculations to the measured T-1/2 value by the renormalization of the M1 effective operator for neutron holes.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-04-04
2016
2016-04-04
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/20.500.14352/24506
url https://hdl.handle.net/20.500.14352/24506
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 Amer Physical Soc
publisher.none.fl_str_mv Amer Physical Soc
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
_version_ 1869407145840082944
score 15,301629

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