Shape-changing particle decays of Bi-185 and structure of the lightest odd-mass Bi isotopes
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
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.
neutron-deficient isotopes, alpha-decay, intruder states, isomeric states, proton decay, mean-field, nuclei, coexistence, shell, spectroscopy
IdentifiersURN: urn:nbn:se:kth:diva-23556DOI: 10.1103/PhysRevC.69.054308ISI: 000222443600018ScopusID: 2-s2.0-4043132559OAI: oai:DiVA.org:kth-23556DiVA: diva2:342254
QC 201005252010-08-102010-08-102010-09-06Bibliographically approved