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Precision mass measurements of 67Fe and 69,70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates

dc.contributor.authorCanete, L.
dc.contributor.authorGiraud, S.
dc.contributor.authorKankainen, A.
dc.contributor.authorBastin, B.
dc.contributor.authorNowacki, F.
dc.contributor.authorPoves, A.
dc.contributor.authorAscher, P.
dc.contributor.authorEronen, T.
dc.contributor.authorAlcindor, V.
dc.contributor.authorJokinen, A.
dc.contributor.authorKhanam, A.
dc.contributor.authorMoore, I. D.
dc.contributor.authorNesterenko, D. A.
dc.contributor.authorDe Oliveira Santos, F.
dc.contributor.authorPenttilä, H.
dc.contributor.authorPetrone, C.
dc.contributor.authorPohjalainen, I.
dc.contributor.authorde Roubin, A.
dc.contributor.authorRubchenya, V. A.
dc.contributor.authorVilen, M.
dc.contributor.authorÄystö, J.
dc.date.accessioned2020-04-22T07:41:17Z
dc.date.available2020-04-22T07:41:17Z
dc.date.issued2020
dc.identifier.citationCanete, L., Giraud, S., Kankainen, A., Bastin, B., Nowacki, F., Poves, A., Ascher, P., Eronen, T., Alcindor, V., Jokinen, A., Khanam, A., Moore, I. D., Nesterenko, D. A., De Oliveira Santos, F., Penttilä, H., Petrone, C., Pohjalainen, I., de Roubin, A., Rubchenya, V. A., . . . Äystö, J. (2020). Precision mass measurements of 67Fe and 69,70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates. <i>Physical Review C</i>, <i>101</i>(4), Article 041304(R). <a href="https://doi.org/10.1103/PhysRevC.101.041304" target="_blank">https://doi.org/10.1103/PhysRevC.101.041304</a>
dc.identifier.otherCONVID_35277417
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/68641
dc.description.abstractAccurate mass measurements of neutron-rich iron and cobalt isotopes 67Fe and 69,70Co have been realized with the JYFLTRAP double Penning-trap mass spectrometer. With novel ion-manipulation techniques, the masses of the 69,70Co ground states and the 1/2− isomer in 69Co have been extracted for the first time. The measurements remove ambiguities in the previous mass values and yield a smoother trend on the mass surface, extending it beyond N=40. The moderate N=40 subshell gap has been found to weaken below 68Ni, a region known for shape coexistence and increased collectivity. The excitation energy for the 1/2− intruder state in 69Co has been determined for the first time and is compared to large-scale shell-model calculations. The new mass values also reduce significantly mass-related uncertainties for the astrophysical rapid neutron-capture process calculations.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.ispartofseriesPhysical Review C
dc.rightsIn Copyright
dc.subject.otherbinding energy and masses
dc.subject.otherenergy levels and level densities
dc.subject.othernuclear astrophysics
dc.subject.othernuclear structure and decays
dc.subject.otherr process
dc.titlePrecision mass measurements of 67Fe and 69,70Co: Nuclear structure toward N = 40 and impact on r-process reaction rates
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202004222849
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineYdin- ja kiihdytinfysiikan huippuyksikköfi
dc.contributor.oppiaineKiihdytinlaboratoriofi
dc.contributor.oppiaineCentre of Excellence in Nuclear and Accelerator Based Physicsen
dc.contributor.oppiaineAccelerator Laboratoryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9985
dc.relation.numberinseries4
dc.relation.volume101
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 American Physical Society
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber654002
dc.relation.grantnumber654002
dc.relation.grantnumber312544
dc.relation.grantnumber284516
dc.relation.grantnumber275389
dc.relation.grantnumber295207
dc.relation.grantnumber771036
dc.relation.grantnumber771036
dc.relation.grantnumber306980
dc.relation.grantnumber284612
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/654002/EU//
dc.relation.projectidinfo:eu-repo/grantAgreement/EC/H2020/771036/EU//MAIDEN
dc.subject.ysoydinfysiikka
dc.subject.ysohiukkasfysiikka
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
jyx.subject.urihttp://www.yso.fi/onto/yso/p15576
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/PhysRevC.101.041304
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuropean Commissionen
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderEuroopan komissiofi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
jyx.fundingprogramResearch infrastructures, H2020en
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramERC Consolidator Granten
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundingprogramCentre of Excellence, AoFen
jyx.fundingprogramResearch infrastructures, H2020fi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramERC Consolidator Grantfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramHuippuyksikkörahoitus, SAfi
jyx.fundinginformationThis work has been supported by the Academy of Finland Grant No. 284612 (the Finnish Centre of Excellence Program in Nuclear and Accelerator Based Physics Research at JYFL 2012-2017) and by the European Union’s Horizon 2020 Research and Innovation Programme Grant Agreement No. 654002 (ENSAR2). A.K. acknowledges support from the Academy of Finland under Grant No. 275389, and D.A.N. and L.C. acknowledge support under Grants No. 284516 and No. 312544. T.E. acknowledges support from the Academy of Finland under Grant No. 295207, and A.d.R. acknowledges support under Grant No. 306980. A.K. and L.C. acknowledge the funding from the European Union’s Horizon 2020 Research and Innovation Programme under Grant Agreement No. 771036 (ERC CoG MAIDEN). A.P. was supported by MICIU (Spain) Grants No. SEV-2016-0597 and No. PGC2018-94583. We are grateful for the bilateral mobility Grants from the Institut Français in Finland, the Embassy of France in Finland, the French Ministry of Higher Education and Research, and the Finnish Society of Science and Letters. We are grateful for the mobility support from Projet International de Coopération Scientifique Manipulation of Ions in Traps and Ion sourCes for Atomic and Nuclear Spectroscopy (MITICANS). S.G. is grateful for the mobility Grant from the EDPSIME.
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