High-spin study of 162Ta
2011 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 84, no 6, 064312- p.Article in journal (Refereed) Published
Excited states in the odd-odd neutron deficient nucleus (162)Ta (Z = 73, N = 89) have been studied for the first time. The gamma spectroscopy analysis using gamma - gamma - gamma coincidences revealed a strongly coupled rotational structure that was established up to large angular momentum states. The rotational band was assigned to the configuration pi h(11/2)9/2 circle times nu i(13/2)1/2 based on its rotational and electromagnetic properties. The data are interpreted within the framework of total Routhian surface calculations, which suggests an axially symmetric shape with a gamma-softminimum at beta(2) approximate to 0.16 and gamma approximate to 6 degrees. The crossing of the signature partners observed in heavier (N >= 91) odd-odd nuclides in this mass region is found to be absent at N = 89. This might be correlated with a change in S-band structure above the paired band crossing at these neutron numbers.
Place, publisher, year, edition, pages
2011. Vol. 84, no 6, 064312- p.
Research subject SRA - E-Science (SeRC)
IdentifiersURN: urn:nbn:se:kth:diva-51357DOI: 10.1103/PhysRevC.84.064312ISI: 000298130400001ScopusID: 2-s2.0-84855366031OAI: oai:DiVA.org:kth-51357DiVA: diva2:463996
FunderSwedish e‐Science Research Center
QC 201202102011-12-122011-12-122015-04-29Bibliographically approved