Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations

Even mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The beta-intensi...

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Detalhes bibliográficos
Autores: Fraile Prieto, Luis Mario, Vedia Fernández, María Victoria
Formato: artículo
Fecha de publicación:2019
País:España
Recursos:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/13262
Acesso em linha:https://hdl.handle.net/20.500.14352/13262
Access Level:acceso abierto
Palavra-chave:539.1
Total absorption spectrometer
Nuclear-data
Simulation
Spectra
Beams
Física nuclear
2207 Física Atómica y Nuclear
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oai_identifier_str oai:docta.ucm.es:20.500.14352/13262
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repository_id_str
spelling Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation CalculationsFraile Prieto, Luis MarioVedia Fernández, María Victoria539.1Total absorption spectrometerNuclear-dataSimulationSpectraBeamsFísica nuclear2207 Física Atómica y NuclearEven mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The beta-intensity distributions of Nb-100gs,Nb-100m and Nb-102gs,Nb-02m beta decays have been determined using the total absorption.-ray spectroscopy technique. The measurements were performed at the upgraded Ion Guide Isotope Separator On-Line facility at the University of Jyvaskyla. Here, the double Penning trap system JYFLTRAP was employed to disentangle the beta decay of the isomeric states. The new data obtained in this challenging measurement have a large impact in antineutrino summation calculations. For the first time the discrepancy between the summation model and the reactor antineutrino measurements in the region of the shape distortion has been reduced.American Physical SocietyUniversidad Complutense de Madrid20192019-01-3020192019-01-30journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/13262reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/132622026-06-02T12:44:21Z
dc.title.none.fl_str_mv Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
title Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
spellingShingle Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
Fraile Prieto, Luis Mario
539.1
Total absorption spectrometer
Nuclear-data
Simulation
Spectra
Beams
Física nuclear
2207 Física Atómica y Nuclear
title_short Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
title_full Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
title_fullStr Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
title_full_unstemmed Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
title_sort Large Impact of the Decay of Niobium Isomers on the Reactor (v)over-bar(e) Summation Calculations
dc.creator.none.fl_str_mv Fraile Prieto, Luis Mario
Vedia Fernández, María Victoria
author Fraile Prieto, Luis Mario
author_facet Fraile Prieto, Luis Mario
Vedia Fernández, María Victoria
author_role author
author2 Vedia Fernández, María Victoria
author2_role author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 539.1
Total absorption spectrometer
Nuclear-data
Simulation
Spectra
Beams
Física nuclear
2207 Física Atómica y Nuclear
topic 539.1
Total absorption spectrometer
Nuclear-data
Simulation
Spectra
Beams
Física nuclear
2207 Física Atómica y Nuclear
description Even mass neutron-rich niobium isotopes are among the principal contributors to the reactor antineutrino energy spectrum. They are also among the most challenging to measure due to the refractory nature of niobium, and because they exhibit isomeric states lying very close in energy. The beta-intensity distributions of Nb-100gs,Nb-100m and Nb-102gs,Nb-02m beta decays have been determined using the total absorption.-ray spectroscopy technique. The measurements were performed at the upgraded Ion Guide Isotope Separator On-Line facility at the University of Jyvaskyla. Here, the double Penning trap system JYFLTRAP was employed to disentangle the beta decay of the isomeric states. The new data obtained in this challenging measurement have a large impact in antineutrino summation calculations. For the first time the discrepancy between the summation model and the reactor antineutrino measurements in the region of the shape distortion has been reduced.
publishDate 2019
dc.date.none.fl_str_mv 2019
2019-01-30
2019
2019-01-30
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/20.500.14352/13262
url https://hdl.handle.net/20.500.14352/13262
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 15,300719

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