ONSET OF COLLECTIVITY IN NEUTRON-DEFICIENT PO-196,PO-198
1995 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 52, no 2, 621-627 p.Article in journal (Refereed) PublishedText
We have studied via in-beam gamma-ray spectroscopy Po-196 and Po-198, which are the first neutron-deficient Po isotopes to exhibit a collective low-lying structure. The ratios of yrast state energies and the E2 branching ratios of transitions from non-yrast to yrast states are indicative of a low-lying vibrational structure. The onset of collective motion in these isotopes can be attributed to the opening of the neutron i(13/2) orbital at N approximate to 112 and the resulting large overlap between the two valence protons in the h(9/2) orbital and the valence neutrons in the i(13/2) orbital.
Place, publisher, year, edition, pages
1995. Vol. 52, no 2, 621-627 p.
IdentifiersURN: urn:nbn:se:kth:diva-178638DOI: 10.1103/PhysRevC.52.621ISI: A1995RQ22700025OAI: oai:DiVA.org:kth-178638DiVA: diva2:878259
NR 20152015-12-082015-12-082015-12-17Bibliographically approved