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Gamow-Teller decay population of Ni-64 levels in the decay of 1(+) Co-64
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2012 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 86, no 6, 064318- p.Article in journal (Refereed) Published
Abstract [en]

The Co-64 beta-decay feeding levels in the well-studied Ni-64 nucleus were investigated. Whereas the previously known Co-64 decay scheme merely contained 2 gamma rays, the decay scheme established in this work contains 18, of which 5 are observed in this work and 6 were previously observed in an (n, gamma) study but not placed in the Ni-64 level scheme. Surprisingly, one additional level-placed at an excitation energy of 3578.7 keV-could be determined. The observed beta-decay paths involve allowed nu f(5/2) -> pi f(7/2) and nu p(1/2) -> pi p(3/2) transitions. Three strongly fed levels around 4 MeV are interpreted to possess possible proton-intruder character.

Place, publisher, year, edition, pages
2012. Vol. 86, no 6, 064318- p.
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Physical Sciences
URN: urn:nbn:se:kth:diva-116425DOI: 10.1103/PhysRevC.86.064318ISI: 000312698000002ScopusID: 2-s2.0-84871642958OAI: diva2:589941

QC 20130121

Available from: 2013-01-21 Created: 2013-01-18 Last updated: 2013-01-21Bibliographically approved

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Sjödin, A. Marica
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