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dc.contributor.authorCaballero-Folch, R.
dc.contributor.authorDillmann, I.
dc.contributor.authorAgramunt, J.
dc.contributor.authorTaín, J. L.
dc.contributor.authorAlgora, A.
dc.contributor.authorÄystö, Juha
dc.contributor.authorCalviño, F.
dc.contributor.authorCanete, Laetitia
dc.contributor.authorCortès, G.
dc.contributor.authorDomingo-Pardo, C.
dc.contributor.authorEronen, Tommi
dc.contributor.authorGanioglu, E.
dc.contributor.authorGelletly, W.
dc.contributor.authorGorelov, Dmitry
dc.contributor.authorGuadilla, V.
dc.contributor.authorHakala, Jani
dc.contributor.authorJokinen, Ari
dc.contributor.authorKankainen, Anu
dc.contributor.authorKolhinen, Veli
dc.contributor.authorKoponen, Jukka
dc.contributor.authorMarta, M.
dc.contributor.authorMendoza, E.
dc.contributor.authorMontaner-Pizá, A.
dc.contributor.authorMoore, Iain
dc.contributor.authorNobs, C. R.
dc.contributor.authorOrrigo, S. E. A.
dc.contributor.authorPenttilä, Heikki
dc.contributor.authorPohjalainen, Ilkka
dc.contributor.authorReinikainen, Juuso
dc.contributor.authorRiego, A.
dc.contributor.authorRinta-Antila, Sami
dc.contributor.authorRubio, B.
dc.contributor.authorSalvador-Castiñeira, P.
dc.contributor.authorSimutkin, Vasily
dc.contributor.authorTarifeño-Saldivia, A.
dc.contributor.authorTolosa-Delgado, A.
dc.contributor.authorVoss, Annika
dc.date.accessioned2018-09-24T11:02:29Z
dc.date.available2018-09-24T11:02:29Z
dc.date.issued2018
dc.identifier.citationCaballero-Folch, R., Dillmann, I., Agramunt, J., Taín, J. L., Algora, A., Äystö, J., Calviño, F., Canete, L., Cortès, G., Domingo-Pardo, C., Eronen, T., Ganioglu, E., Gelletly, W., Gorelov, D., Guadilla, V., Hakala, J., Jokinen, A., Kankainen, A., Kolhinen, V., . . . Voss, A. (2018). First determination of β-delayed multiple neutron emission beyond A = 100 through direct neutron measurement : The P2n value of 136Sb. <i>Physical Review C</i>, <i>98</i>(3), Article 034310. <a href="https://doi.org/10.1103/PhysRevC.98.034310" target="_blank">https://doi.org/10.1103/PhysRevC.98.034310</a>
dc.identifier.otherCONVID_28253881
dc.identifier.otherTUTKAID_78776
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/59639
dc.description.abstractBackground: β-delayed multiple neutron emission has been observed for some nuclei with A≤100, being the Rb100 the heaviest β2n emitter measured to date. So far, only 25P2n values have been determined for the ≈300 nuclei that may decay in this way. Accordingly, it is of interest to measure P2n values for the other possible multiple neutron emitters throughout the chart of the nuclides. It is of particular interest to make such a measurement for nuclei with A>100 to test the predictions of theoretical models and simulation tools for the decays of heavy nuclei in the region of very neutron-rich nuclei. In addition, the decay properties of these nuclei are fundamental for the understanding of astrophysical nucleosynthesis processes, such as the r-process, and safety inputs for nuclear reactors. Purpose: To determine for the first time the two-neutron branching ratio, the P2n value, for Sb136 through a direct neutron measurement and to provide precise P1n values for Sb136 and Te136. Method: A pure beam of each isotope of interest was provided by the JYFLTRAP Penning trap at the Ion Guide Isotope Separator On-Line (IGISOL) facility of the University of Jyväskylä, Finland. The purified ions were implanted into a moving tape at the end of the beam line. The detection setup consisted of a plastic scintillator placed right behind the implantation point after the tape to register the β decays and the BELEN detector, based on neutron counters embedded in a polyethylene matrix. The analysis was based on the study of the β- and neutron-growth-and-decay curves and the β-one-neutron and β-two-neutron time correlations, which allowed us the determination of the neutron-branching ratios. Results: The P2n value of Sb136 was found to be 0.14(3)% and the measured P1n values for Sb136 and Te136 were found to be 32.2(15)% and 1.47(6)%, respectively. Conclusions: The measured P2n value is a factor 44 smaller than predicted by the finite-range droplet model plus the quasiparticle random-phase approximation (FRDM+QRPA) model used for r-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.otherbeta decay
dc.subject.otherisotope separation and enrichment
dc.subject.otherneutron physics
dc.subject.othernuclear astrophysics
dc.subject.othernuclear engineering
dc.subject.othernuclear structure and decays
dc.subject.otherr process
dc.titleFirst determination of β-delayed multiple neutron emission beyond A = 100 through direct neutron measurement : The P2n value of 136Sb
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201809134114
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.oppiaineKiihdytinlaboratoriofi
dc.contributor.oppiaineAccelerator Laboratoryen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-09-13T09:15:12Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn2469-9985
dc.relation.numberinseries3
dc.relation.volume98
dc.type.versionpublishedVersion
dc.rights.copyright© American Physical Society 2018
dc.rights.accesslevelopenAccessfi
dc.relation.grantnumber275389
dc.relation.grantnumber284516
dc.subject.ysoastrofysiikka
dc.subject.ysoydinfysiikka
dc.subject.ysoemissio (fysiikka)
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p20188
jyx.subject.urihttp://www.yso.fi/onto/yso/p14759
jyx.subject.urihttp://www.yso.fi/onto/yso/p4149
dc.rights.urlhttp://rightsstatements.org/page/InC/1.0/?language=en
dc.relation.doi10.1103/PhysRevC.98.034310
dc.relation.funderSuomen Akatemiafi
dc.relation.funderSuomen Akatemiafi
dc.relation.funderResearch Council of Finlanden
dc.relation.funderResearch Council of Finlanden
jyx.fundingprogramAkatemiatutkija, SAfi
jyx.fundingprogramAkatemiatutkijan tutkimuskulut, SAfi
jyx.fundingprogramAcademy Research Fellow, AoFen
jyx.fundingprogramResearch costs of Academy Research Fellow, AoFen
jyx.fundinginformationThis work was supported by the National Research Council of Canada (NSERC) Discovery Grant No. SAPIN-2014-00028, RGPAS Grant No. 462257-2014 at TRIUMF, and by the Spanish Ministerio de Economia y Competitividad under Grants No. FPA2010-17142, No. AIC-D-2011-0705, No. FPA2011-28770-C03-03, No. FPA2011-24553, No. FPA2014-52823-C2-1-P, and No. FPA2014-52823-C2-2-P and the Program Severo Ochoa (Program No. SEV-2014-0398). It is also supported by the European Commission under the FP7/EURATOM Contract No. 605203 and by the Academy of Finland under the Finnish Centre of Excellence Programme 2012–2017 (Project No. 213503, Nuclear and Accelerator-Based Physics Research at JYFL). A.K. also acknowledges the Academy of Finland Grants No. 275389 and No. 284516. I.D. and M.M. acknowledge support from the German Helmholtz Association via the Young Investigators Grant No. VH-NG 627 [Lifetime Spectroscopy for Astrophysics (LISA)]. W.G. acknowledges support from the U.K. Science & Technology Faculties Council (STFC) under Grant No. ST/F012012/1 and the University of Valencia.
dc.type.okmA1


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