Deexcitation from superdeformed bands in [sup 151]Tb and neighboring [ital A][similar to]150 nuclei

Journal Article · Mon Oct 18 04:00:00 EDT 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.2559· OSTI ID:6050532

Curien, D; de France, G; Beausang, C W; Beck, F A; Byrski, T; Clarke, S; Dagnall, P; Duchene, G; Flibotte, S; Forbes, S; Forsyth, P D; Haas, B; Joyce, M A; Kharraja, B; Nyako, B M; Schueck, C; Simpson, J; Theisen, C; Twin, P J; Vivien, J P ; Zolnai, L ^[1]

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1. Centre de Recherches Nucleaires; Institut National de Physique Nucleaire et de Physique des Particules Centre National de la Recherche Scientifique/Universite Louis Pasteur; F-67037 Strasbourg CEDEX (France) Oliver Lodge Laboratory; University of Liverpool; Liverpool L69 3BX (United Kingdom) Institute of Nuclear Research; Bem ter 18/c; H-4001 Debrecen PF51 (Hungary) Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse; Institut National de Physique Nucleaire et de Physique des Particules; Centre National de la Recherche Scientifique; F-91405 Orsay (France) Science and Engineering Research Council; Daresbury Laboratory; Warrington WA4 4AD (United Kingdom)

Relative intensities of the yrast and the first excited superdeformed bands in [sup 151]Tb have been accurately measured, with the EUROGAM spectrometer. It is shown that he excited band depopulates at the same freqeuncy and spin as its identical band in the isotone [sup 152]Dy whereas the yrast band deexcites at higher rotational frequency and spin even though it is much lower in excitation energy. A classification of superdeformed bands in the [ital A][similar to]150 mass region indicates that the decay-out mechanism is strongly affected by neutron pairing correlations and the occupancy of high-[ital N] intruder orbitals.

• OSTI ID: 6050532
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:16; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

663110* -- General & Average Properties of Nuclei & Nuclear Energy Levels-- (1992-)
663220 -- Electromagnetic Transitions-- (1992-)
663570 -- Nuclear Mass Ranges-- A=150-189-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DE-EXCITATION
DEFORMATION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
GAMMA RADIATION
HOURS LIVING RADIOISOTOPES
INTERNAL CONVERSION RADIOISOTOPES
IONIZING RADIATIONS
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEASURING INSTRUMENTS
NUCLEAR DEFORMATION
NUCLEI
ODD-EVEN NUCLEI
RADIATIONS
RADIOISOTOPES
RARE EAR
SPECTROMETERS
TERBIUM 151
YRAST STATES