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Probing shape coexistence by alpha decays to 0(+) states
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.ORCID iD: 0000-0002-1406-5695
KTH, School of Engineering Sciences (SCI), Physics, Nuclear Physics.
2014 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 90, no 6, 061303- p.Article in journal (Refereed) Published
Abstract [en]

We analyze the alpha-decay fine structure to excited 0(2)(+) states in Hg and Rn isotopes. These states are described as minima in the potential energy surface (PES) provided by the standard deformed Woods-Saxon plus pairing approach. We also investigate alpha decay from the excited state P(0(2)(+)) in the parent nucleus by evaluating the corresponding hindrance factor (HF). By analyzing the experimental HF's we find the remarkable property that the ground and excited states D(0(1)(+)) and D(0(2)(+)) in the daughter nuclei are occupied with almost equal probabilities if there is no excited P(0(+)) states in the parent nucleus. Moreover, if there exists an excited state P(0(2)(+)) then the occupation probability of this state is 25%.

Place, publisher, year, edition, pages
2014. Vol. 90, no 6, 061303- p.
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URN: urn:nbn:se:kth:diva-160408DOI: 10.1103/PhysRevC.90.061303ISI: 000348729300001ScopusID: 2-s2.0-84919754722OAI: diva2:790365
Swedish Research Council, 621-2012-3805, 621-2013-4323

QC 20150224

Available from: 2015-02-24 Created: 2015-02-19 Last updated: 2015-03-17Bibliographically approved

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