Structure of 128Sn selectively populated in the β decay of the 128In ground state
High-resolution γ -ray spectroscopy and fast-timing methods were employed to study the excited structure of 128Sn, populated via the β-decay chain of 128Cd → 128In → 128Sn. The experiment was performed by online mass separation at the ISOLDE facility at CERN, profiting from intense and pure Cd beams...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/122578 |
| Acceso en línea: | https://hdl.handle.net/20.500.14352/122578 |
| Access Level: | acceso abierto |
| Palabra clave: | 539.1 Picosecond lifetime measurements Neutron-rich nuclei Transition-probabilities Beta decay Electromagnetic transitions Nuclear structure & decays 90 ≤ A ≤ 149 Lifetimes & widths Radioactive beams Shell model Física nuclear 2207 Física Atómica y Nuclear |
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Structure of 128Sn selectively populated in the β decay of the 128In ground stateLlanos Expósito, MarcosBenito García, JaimeFraile Prieto, Luis MarioIllana Sisón, AndrésBriz Monago, José AntonioEncina Baranda, NereaLópez Herraiz, JoaquínRodríguez Murias, JavierMartínez Nouvilas, VíctorSánchez Tembleque Verbo, VíctorUdías Moinelo, José Manuel539.1Picosecond lifetime measurementsNeutron-rich nucleiTransition-probabilitiesBeta decayElectromagnetic transitionsNuclear structure & decays90 ≤ A ≤ 149Lifetimes & widthsRadioactive beamsShell modelFísica nuclear2207 Física Atómica y NuclearHigh-resolution γ -ray spectroscopy and fast-timing methods were employed to study the excited structure of 128Sn, populated via the β-decay chain of 128Cd → 128In → 128Sn. The experiment was performed by online mass separation at the ISOLDE facility at CERN, profiting from intense and pure Cd beams obtained by a temperature-controlled quartz transfer line combined with resonant laser ionization. An extended 128Sn level scheme populated in the β− decay of the low-spin 128In isomer was constructed, adding a total of 81 new γ -ray transitions and 30 new levels. Lifetimes of excited states were measured using time-delayed βγ (t) and γ γ (t) coincidences. The lifetime of the (4+) state was measured for the first time, making it possible to deduce the B(E2; 4+ → 2+) transition strength. The previously measured (5−) state was reassessed with improved statistics. Additionally, an upper limit for the lifetime of the state at 2378 keV was established. The derived reduced transition probabilities support a tentative spin-parity assignment of (4−) for this level. The experimental level scheme and transition probabilities are compared with available shell-model calculations.American Physical Society (APS)Universidad Complutense de Madrid20252025-06-1020252025-06-10journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/122578reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/1225782026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| title |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| spellingShingle |
Structure of 128Sn selectively populated in the β decay of the 128In ground state Llanos Expósito, Marcos 539.1 Picosecond lifetime measurements Neutron-rich nuclei Transition-probabilities Beta decay Electromagnetic transitions Nuclear structure & decays 90 ≤ A ≤ 149 Lifetimes & widths Radioactive beams Shell model Física nuclear 2207 Física Atómica y Nuclear |
| title_short |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| title_full |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| title_fullStr |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| title_full_unstemmed |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| title_sort |
Structure of 128Sn selectively populated in the β decay of the 128In ground state |
| dc.creator.none.fl_str_mv |
Llanos Expósito, Marcos Benito García, Jaime Fraile Prieto, Luis Mario Illana Sisón, Andrés Briz Monago, José Antonio Encina Baranda, Nerea López Herraiz, Joaquín Rodríguez Murias, Javier Martínez Nouvilas, Víctor Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel |
| author |
Llanos Expósito, Marcos |
| author_facet |
Llanos Expósito, Marcos Benito García, Jaime Fraile Prieto, Luis Mario Illana Sisón, Andrés Briz Monago, José Antonio Encina Baranda, Nerea López Herraiz, Joaquín Rodríguez Murias, Javier Martínez Nouvilas, Víctor Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel |
| author_role |
author |
| author2 |
Benito García, Jaime Fraile Prieto, Luis Mario Illana Sisón, Andrés Briz Monago, José Antonio Encina Baranda, Nerea López Herraiz, Joaquín Rodríguez Murias, Javier Martínez Nouvilas, Víctor Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel |
| author2_role |
author author author author 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 Transition-probabilities Beta decay Electromagnetic transitions Nuclear structure & decays 90 ≤ A ≤ 149 Lifetimes & widths Radioactive beams Shell model Física nuclear 2207 Física Atómica y Nuclear |
| topic |
539.1 Picosecond lifetime measurements Neutron-rich nuclei Transition-probabilities Beta decay Electromagnetic transitions Nuclear structure & decays 90 ≤ A ≤ 149 Lifetimes & widths Radioactive beams Shell model Física nuclear 2207 Física Atómica y Nuclear |
| description |
High-resolution γ -ray spectroscopy and fast-timing methods were employed to study the excited structure of 128Sn, populated via the β-decay chain of 128Cd → 128In → 128Sn. The experiment was performed by online mass separation at the ISOLDE facility at CERN, profiting from intense and pure Cd beams obtained by a temperature-controlled quartz transfer line combined with resonant laser ionization. An extended 128Sn level scheme populated in the β− decay of the low-spin 128In isomer was constructed, adding a total of 81 new γ -ray transitions and 30 new levels. Lifetimes of excited states were measured using time-delayed βγ (t) and γ γ (t) coincidences. The lifetime of the (4+) state was measured for the first time, making it possible to deduce the B(E2; 4+ → 2+) transition strength. The previously measured (5−) state was reassessed with improved statistics. Additionally, an upper limit for the lifetime of the state at 2378 keV was established. The derived reduced transition probabilities support a tentative spin-parity assignment of (4−) for this level. The experimental level scheme and transition probabilities are compared with available shell-model calculations. |
| publishDate |
2025 |
| dc.date.none.fl_str_mv |
2025 2025-06-10 2025 2025-06-10 |
| 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 |
https://hdl.handle.net/20.500.14352/122578 |
| url |
https://hdl.handle.net/20.500.14352/122578 |
| 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 |
American Physical Society (APS) |
| publisher.none.fl_str_mv |
American Physical Society (APS) |
| 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 |
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Docta Complutense |
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1869422192667656192 |
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15,81155 |