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Shape-changing particle decays of Bi-185 and structure of the lightest odd-mass Bi isotopes
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2004 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 69, no 5, 054308- p.Article in journal (Refereed) Published
Abstract [en]

Proton and alpha decay of the proton-rich nuclide Bi-185 has been restudied in more detail in the complete fusion reaction Nb-93(Mo-95, 3n)Bi-185 at the velocity filter SHIP. The observed decay pattern of Bi-185 and of the heavier odd-mass isotopes Bi-187,Bi-189,Bi-191,Bi-193 are interpreted based on potential-energy surface calculations. It is shown that the experimental systematics of the particle decays and of the excited states in these nuclei (where known) can be explained by the prolate-oblate shape co-existence at low excitation energy. The observed state in Bi-185 is proposed to be of prolate nature, which is in contrast with the previously proposed oblate interpretation.

Place, publisher, year, edition, pages
2004. Vol. 69, no 5, 054308- p.
Keyword [en]
neutron-deficient isotopes, alpha-decay, intruder states, isomeric states, proton decay, mean-field, nuclei, coexistence, shell, spectroscopy
National Category
Physical Sciences
URN: urn:nbn:se:kth:diva-23556DOI: 10.1103/PhysRevC.69.054308ISI: 000222443600018ScopusID: 2-s2.0-4043132559OAI: diva2:342254
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2010-09-06Bibliographically 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.
Trita-FYS, ISSN 0280-316X ; 2006.30
National Category
Atom and Molecular Physics and Optics
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
QC 20100906Available from: 2006-05-11 Created: 2006-05-11 Last updated: 2010-09-06Bibliographically approved

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