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beta decay of Mn-61 to levels in Fe-61
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2013 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 88, no 1, 014307- p.Article in journal (Refereed) Published
Abstract [en]

A detailed beta-decay study of Mn-61 is presented, yielding extended information on the level structure of Fe-61. Pure beams were obtained at ISOLDE, CERN, after selective laser ionization and mass separation of fission products from the bombardment of a UCx target by 1.4-GeV protons. The beta and gamma information was detected by two MiniBall clusters and three Delta E plastic scintillators. The new Mn-61 decay scheme reveals 48 gamma transitions, distributed over 20 excited states. A comparison to the decay scheme of Mn-59 and excited states in Fe-59 is made. Shell-model calculations with two different interactions are performed in order to compare the nuclear structure of the two neighboring odd-A iron isotopes. Tentative spin and parities of several excited states in Fe-61 are assigned on the basis of beta-decay feeding patterns in both Fe-59,Fe-61 and of results from the theoretical shell-model calculations.

Place, publisher, year, edition, pages
American Physical Society , 2013. Vol. 88, no 1, 014307- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-125558DOI: 10.1103/PhysRevC.88.014307ISI: 000321736800002ScopusID: 2-s2.0-84881177318OAI: diva2:640041
EU, European Research Council, RII3-CT-2004-506065

QC 20130812

Available from: 2013-08-12 Created: 2013-08-09 Last updated: 2013-08-12Bibliographically approved

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Sjödin, A. Marica
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