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Extended investigation of superdeformed bands in Tb-151,Tb-152 nuclei
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2008 (English)In: Physical Review C. Nuclear Physics, ISSN 0556-2813, E-ISSN 1089-490X, Vol. 77, no 1Article in journal (Refereed) Published
Abstract [en]

A detailed study of known and new SD bands in Tb isotopes has been performed with the use of the EUROBALL IV gamma-ray array. The high-statistics data set has allowed for the extension of known SD bands at low and high spins by new gamma-ray transitions. These transitions, as it turns out, correspond to the rotational frequencies where the principal superdeformed gaps (Z=66,N=86) close giving rise to up- or down-bending mechanisms. This enables to attribute the underlying theoretical configurations with much higher confidence as compared to the previous identifications. Five new SD bands have been discovered, three of them assigned to the Tb-152 and the two others to the Tb-151 nuclei. Nuclear mean-field calculations have been used to interpret the structure of known SD bands as well as of the new ones in terms of nucleonic configurations.

Place, publisher, year, edition, pages
2008. Vol. 77, no 1
Keyword [en]
hyperdeformed configurations, delta-i=4 bifurcation, neutron, excitations, identical bands, rotating nuclei, tb-151, proton, spectroscopy, symmetry, dy-152
URN: urn:nbn:se:kth:diva-17295DOI: 10.1103/PhysRevC.77.014308ISI: 000252863600014ScopusID: 2-s2.0-38149097758OAI: diva2:335338
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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