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New lifetime measurements in Pd-109 and the onset of deformation at N=60

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dc.contributor.authorOlaizola, B.
dc.contributor.authorFraile Prieto, Luis Mario
dc.date.accessioned2023-06-18T06:49:25Z
dc.date.available2023-06-18T06:49:25Z
dc.date.issued2015-12-14
dc.description©2015 American Physical Society. Artículo firmado por 21 autores. B.B. would like to acknowledge helpful discussions with S. Frauendorf and A. O. Macchiavelli. Figures 1(a), 4, and 5 were created using the LEVELSCHEME scientific figure preparation system [70]. This project was funded by the National Science Foundation through Grants No. PHY0822648 and No. PHY0758100 and supported by EU 6th Framework program (Integrating Infrastructure Initiative-Transnational Access) Contract No. 506065 (EURONS), the Spanish MINECO via FPA-2013-41267-P, and by the Academy of Finland under the Centre of Excellence Programme 2006-2011 (nuclear and accelerator based physics program at JYFL). B.B. acknowledges support from the U.S. Department of Energy and Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344.
dc.description.abstractSeveral new subnanosecond lifetimes were measured in Pd-109 using the fast-timing beta gamma gamma (t) method. Fission fragments of the A = 109 mass chain were produced by bombarding natural uranium with 30 MeV protons at the Jyvaskyla Ion Guide Isotope Separator On-Line (IGISOL) facility. Lifetimes were obtained for excited states in Pd-109 populated following beta decay of Rh-109. The new lifetimes provide some insight into the evolution of nuclear structure in this mass region. In particular, the distinct structure of the two low-lying 7/2(+) states occurring systematically across the Pd isotopic chain is supported by the new lifetime measurements. The available nuclear data indicate a sudden increase in deformation at N = 60 which is related to the strong p-n interaction between pi g(9/2) and vg(7/2) valence nucleons expected in this region.
dc.description.departmentSección Deptal. de Arquitectura de Computadores y Automática (Físicas)
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea. FP6
dc.description.sponsorshipMinisterio de Economía y Competitividad (MINECO)
dc.description.sponsorshipNational Science Foundation
dc.description.sponsorshipEU Integrating Infrastructure Initiative–Transnational Access
dc.description.sponsorshipAcademy of Finland under the Centre of Excellence Programme
dc.description.sponsorshipU.S. Department of Energy
dc.description.sponsorshipLawrence Livermore National Laboratory
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/35266
dc.identifier.doi10.1103/PhysRevC.92.064312
dc.identifier.issn0556-2813
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevC.92.064312
dc.identifier.relatedurlhttp://journals.aps.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/24311
dc.issue.number6
dc.journal.titlePhysical Review C
dc.language.isoeng
dc.publisherAmer Physical Soc
dc.relation.projectIDEURONS (506065)
dc.relation.projectIDFPA-2013-41267-P
dc.relation.projectIDPHY0822648
dc.relation.projectIDPHY0758100
dc.relation.projectIDDE-AC52-07NA27344
dc.rights.accessRightsopen access
dc.subject.cdu539.1
dc.subject.keywordNuclear data sheets
dc.subject.keywordNeutron rich nuclei
dc.subject.keywordUnique parity states
dc.subject.keywordParticle rotor model
dc.subject.keywordHigh spin states
dc.subject.keywordShape coexistence
dc.subject.keywordCollective excitation
dc.subject.keywordAlaga model
dc.subject.keywordHeavy ion
dc.subject.keywordIsotopes.
dc.subject.ucmFísica nuclear
dc.subject.unesco2207 Física Atómica y Nuclear
dc.titleNew lifetime measurements in Pd-109 and the onset of deformation at N=60
dc.typejournal article
dc.volume.number92
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