Decay-out of 151Tb Yrast Superdeformed Band and Shape Coexistence

Journal Article · Fri Feb 27 04:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1691711· OSTI ID:20632979

Duchene, G; Robin, J; Odahara, A; Byrski, Th; Beck, F A; Bednarczyk, P; Curien, D; Courtin, S; Dorvaux, O; Gall, B; Joshi, P; Nourreddine, A; Pachoud, E; Piqueras, I; Vivien, J P ^[1]; Twin, P J; Cullen, D M; Ertueck, S; King, S L; Paul, E S ^[2]

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1. Institut de Recherches Subatomiques, UMR 7500, CNRS-IN2P3 et Universite Louis Pasteur, F-67037 Strasbourg Cedex 2 (France)
2. Oliver Lodge Laboratory, University of Liverpool, P.O. Box 147, Liverpool L69 7ZE (United Kingdom); and others

Linking transitions between the superdeformed (SD) and the normal deformed (ND) wells have been searched in 151Tb nucleus. Two experiments of 5 and 17 days have been performed with EUROBALL IV. Transitions of 2818 keV and 3748 keV with intensities of about 1 % relative to the yrast SD band have been observed. Their decay-out properties are discussed in the text. In addition the eight known SD bands have been extended towards higher rotational frequencies where orbital crossings are observed. For the first time, weakly populated collective ND structures, likely triaxial, similar to the ones recently identified in 152Dy, 153Ho and 155Er nuclei have been observed in 151Tb. The SD and ND structures are interpreted in the frame of Woods-Saxon theoretical calculations.

• OSTI ID: 20632979
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 701; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
DYSPROSIUM 152
ERBIUM 155
GAMMA SPECTRA
HEAVY ION FUSION REACTIONS
HOLMIUM 153
KEV RANGE
NUCLEAR DECAY
SHELL MODELS
SUPERDEFORMED NUCLEI
TERBIUM 151
WOODS-SAXON POTENTIAL
YRAST STATES