First β-decay spectroscopy of In-135 and new β-decay branches of In-134
The beta decay of the neutron-rich In-134 and In-135 was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number Z = 50 above the N = 82 shell. The beta-delayed gamma-ray spectroscopy measurement was performed at the ISOLDE...
| Autores: | , , , , , , , , , , , , |
|---|---|
| Formato: | artículo |
| Fecha de publicación: | 2021 |
| País: | España |
| Recursos: | Universidad Complutense de Madrid (UCM) |
| Repositorio: | Docta Complutense |
| Idioma: | inglés |
| OAI Identifier: | oai:docta.ucm.es:20.500.14352/4725 |
| Acesso em linha: | https://hdl.handle.net/20.500.14352/4725 |
| Access Level: | acceso abierto |
| Palavra-chave: | 539.1 Nuclear-data sheets Picosecond lifetime measurements Neutron emission probabilities Rich nuclei Half-lives SN-132 States Isotopes Isomer Model Física nuclear 2207 Física Atómica y Nuclear |
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First β-decay spectroscopy of In-135 and new β-decay branches of In-134Benito García, JaimeFraile Prieto, Luis MarioCarmona, M.Galve Lahoz, PabloGarcía Díez, MarcosIbañez, P.López Montes, AlejandroMartínez, M. C.Sánchez Parcerisa, DanielSánchez Tembleque Verbo, VíctorUdías Moinelo, José ManuelVedia Fernández, María VictoriaVilla, V.539.1Nuclear-data sheetsPicosecond lifetime measurementsNeutron emission probabilitiesRich nucleiHalf-livesSN-132StatesIsotopesIsomerModelFísica nuclear2207 Física Atómica y NuclearThe beta decay of the neutron-rich In-134 and In-135 was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number Z = 50 above the N = 82 shell. The beta-delayed gamma-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three beta-decay branches of In-134 were established, two of which were observed for the first time. Population of neutron-unbound states decaying via gamma rays was identified in the two daughter nuclei of In-134, Sn-134 and Sn-133, at excitation energies exceeding the neutron separation energy by 1 MeV. The beta-delayed one-and two-neutron emission branching ratios of In-134 were determined and compared with theoretical calculations. The beta-delayed one-neutron decay was observed to be dominant beta-decay branch of In-134 even though the Gamow-Teller resonance is located substantially above the two-neutron separation energy of Sn-134. Transitions following the beta decay of In-135 are reported for the first time, including gamma rays tentatively attributed to Sn-135. In total, six new levels were identified in Sn-134 on the basis of the beta gamma gamma coincidences observed in the In-134 and In-135 beta decays. A transition that might be a candidate for deexciting the missing neutron single-particle 13/2(+) state in Sn-133 was observed in both beta decays and its assignment is discussed. Experimental level schemes of Sn-134 and Sn-135 are compared with shell-model predictions. Using the fast timing technique, half-lives of the 2(+), 4(+), and 6(+) levels in Sn-134 were determined. From the lifetime of the 4(+) state measured for the first time, an unexpectedly large B(E2; 4(+) -> 2(+)) transition strength was deduced, which is not reproduced by the shell-model calculations.Amer Physical SocUniversidad Complutense de Madrid20212021-10-2620212021-10-26journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/4725reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/47252026-06-02T12:44:21Z |
| dc.title.none.fl_str_mv |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| title |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| spellingShingle |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 Benito García, Jaime 539.1 Nuclear-data sheets Picosecond lifetime measurements Neutron emission probabilities Rich nuclei Half-lives SN-132 States Isotopes Isomer Model Física nuclear 2207 Física Atómica y Nuclear |
| title_short |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| title_full |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| title_fullStr |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| title_full_unstemmed |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| title_sort |
First β-decay spectroscopy of In-135 and new β-decay branches of In-134 |
| dc.creator.none.fl_str_mv |
Benito García, Jaime Fraile Prieto, Luis Mario Carmona, M. Galve Lahoz, Pablo García Díez, Marcos Ibañez, P. López Montes, Alejandro Martínez, M. C. Sánchez Parcerisa, Daniel Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel Vedia Fernández, María Victoria Villa, V. |
| author |
Benito García, Jaime |
| author_facet |
Benito García, Jaime Fraile Prieto, Luis Mario Carmona, M. Galve Lahoz, Pablo García Díez, Marcos Ibañez, P. López Montes, Alejandro Martínez, M. C. Sánchez Parcerisa, Daniel Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel Vedia Fernández, María Victoria Villa, V. |
| author_role |
author |
| author2 |
Fraile Prieto, Luis Mario Carmona, M. Galve Lahoz, Pablo García Díez, Marcos Ibañez, P. López Montes, Alejandro Martínez, M. C. Sánchez Parcerisa, Daniel Sánchez Tembleque Verbo, Víctor Udías Moinelo, José Manuel Vedia Fernández, María Victoria Villa, V. |
| author2_role |
author author 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 Nuclear-data sheets Picosecond lifetime measurements Neutron emission probabilities Rich nuclei Half-lives SN-132 States Isotopes Isomer Model Física nuclear 2207 Física Atómica y Nuclear |
| topic |
539.1 Nuclear-data sheets Picosecond lifetime measurements Neutron emission probabilities Rich nuclei Half-lives SN-132 States Isotopes Isomer Model Física nuclear 2207 Física Atómica y Nuclear |
| description |
The beta decay of the neutron-rich In-134 and In-135 was investigated experimentally in order to provide new insights into the nuclear structure of the tin isotopes with magic proton number Z = 50 above the N = 82 shell. The beta-delayed gamma-ray spectroscopy measurement was performed at the ISOLDE facility at CERN, where indium isotopes were selectively laser-ionized and on-line mass separated. Three beta-decay branches of In-134 were established, two of which were observed for the first time. Population of neutron-unbound states decaying via gamma rays was identified in the two daughter nuclei of In-134, Sn-134 and Sn-133, at excitation energies exceeding the neutron separation energy by 1 MeV. The beta-delayed one-and two-neutron emission branching ratios of In-134 were determined and compared with theoretical calculations. The beta-delayed one-neutron decay was observed to be dominant beta-decay branch of In-134 even though the Gamow-Teller resonance is located substantially above the two-neutron separation energy of Sn-134. Transitions following the beta decay of In-135 are reported for the first time, including gamma rays tentatively attributed to Sn-135. In total, six new levels were identified in Sn-134 on the basis of the beta gamma gamma coincidences observed in the In-134 and In-135 beta decays. A transition that might be a candidate for deexciting the missing neutron single-particle 13/2(+) state in Sn-133 was observed in both beta decays and its assignment is discussed. Experimental level schemes of Sn-134 and Sn-135 are compared with shell-model predictions. Using the fast timing technique, half-lives of the 2(+), 4(+), and 6(+) levels in Sn-134 were determined. From the lifetime of the 4(+) state measured for the first time, an unexpectedly large B(E2; 4(+) -> 2(+)) transition strength was deduced, which is not reproduced by the shell-model calculations. |
| publishDate |
2021 |
| dc.date.none.fl_str_mv |
2021 2021-10-26 2021 2021-10-26 |
| 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/20.500.14352/4725 |
| url |
https://hdl.handle.net/20.500.14352/4725 |
| 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 |
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open access http://purl.org/coar/access_right/c_abf2 |
| eu_rights_str_mv |
openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Amer Physical Soc |
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Amer Physical Soc |
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reponame:Docta Complutense instname:Universidad Complutense de Madrid (UCM) |
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Universidad Complutense de Madrid (UCM) |
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Docta Complutense |
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Docta Complutense |
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15,301603 |