Lifetime measurements of superdeformed bands in {sup 148{endash}149}Gd and {sup 152}Dy: Evidence for structure-dependent elongations

Journal Article · Sat Jun 01 04:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.4480· OSTI ID:285757

Savajols, H; Korichi, A; Ward, D; Appelbe, D; Ball, G; Beausang, C; Beck, F; Byrski, T; Curien, D; Dagnall, P; de France, G; Disdier, D; Duchene, G; Erturk, S; Finck, C; Flibotte, S; Gall, B; Galindo-Uribarri, A; Haas, B; Hackman, G ; Janzen, V; Kharraja, B; Lisle, J; Merdinger, J; Mullins, S; Pilotte, S; Prevost, D; Radford, D; Rauch, V; Rigollet, C; Smalley, D; Smith, M; Stezowski, O; Styczen, J; Theisen, C; Twin, P; Vivien, J; Waddington, J; Zuber, K; Ragnarsson, I ^[1]

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1. Centre de Recherches Nucleaires, IN2P3-CNRS/Universite Louis Pasteur, F-67037 Strasbourg Cedex 2 (France)

Precise level lifetimes have been measured for various superdeformed bands in {sup 148,149}Gd and {sup 152}Dy with the Doppler-shift attenuation method. From the derived quadrupole moments, {ital Q}{sub 0}, we find large differences in deformation between the yrast bands and some excited bands in the gadolinium isotopes. Moreover, two of the excited Gd bands and the {sup 152}Dy yrast band, which have identical moments of inertia, have different elongations, supporting the picture that alignment and deformation effects cancel in identical bands. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 285757
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ALIGNMENT
ATTENUATION
DEFORMATION
DOPPLER BROADENING
DYSPROSIUM 152
ELONGATION
EXCITED STATES
GADOLINIUM 148
GADOLINIUM 149
LIFETIME
MOMENT OF INERTIA
QUADRUPOLES
SUPERDEFORMED NUCLEI
YRAST STATES