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Fine structure in the alpha decay of Po-188,Po-192
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2003 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 68, no 5Article in journal (Refereed) Published
Abstract [en]

The alpha decay of Po-188,Po-192 has been reexamined in order to probe the 0(+) states in the daughter nuclei Pb-184,Pb-188 that can be associated with coexisting spherical, oblate, and/or prolate configurations. Improved values were measured for the excitation energy and the feeding alpha -decay intensity of the 0(2)(+) state in Pb-184,Pb-188 and conflicting results on the 0(3)(+) state in Pb-188 were clarified. All known cases of fine structure in the alpha decay of the even-even Po nuclei are reviewed. The reduced alpha-decay width systematics combined with potential-energy-surface calculations confirm the onset of deformation in the ground state of the polonium nuclei around the neutron midshell. An isomeric state with a half-life of 580(100)ns has been identified in Po-192 .

Place, publisher, year, edition, pages
2003. Vol. 68, no 5
Keyword [en]
gamma-ray spectroscopy, even-even nuclei, shape coexistence, intruder states, mass nuclei, po isotopes, pb-186, po-192, shell
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-23049DOI: 10.1103/PhysRevC.68.054311ISI: 000187578300021OAI: oai:DiVA.org:kth-23049DiVA: diva2:341747
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Nuclear structure aspects of proton and alpha particle decay
Open this publication in new window or tab >>Nuclear structure aspects of proton and alpha particle decay
2006 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2006. vii, 40 p.
Series
Trita-FYS, ISSN 0280-316X ; 2006.30
National Category
Atom and Molecular Physics and Optics
Identifiers
urn:nbn:se:kth:diva-3959 (URN)91-7178-340-7 (ISBN)
Public defence
2006-05-15, Sal FA32, AlbaNova, Roslagstullsbacken 21, Stockholm, 10:00
Opponent
Supervisors
Note
QC 20100906Available from: 2006-05-11 Created: 2006-05-11 Last updated: 2010-09-06Bibliographically approved

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