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Yrast isomers and possible oblate shape in /sup 152/Dy

Journal Article · · Phys. Rev. Lett.; (United States)
; ; ; ; ; ;
Excitation energies, spins, and parities have been determined for /sup 152/Dy in (HI,xn) reactions up to I/sup ..pi../ = 27/sup +/. Three isomers with T/sub 1/2/ = 49.5 ns (E/sub x/ = 5035 keV, I/sub ..pi../ = 16/sup +/), 9.9 ns (E/sub x/ = 6076 keV, I/sup ..pi../ = 20/sup -/), and 1.6 ns (E/sub x/ = 7828 keV, I/sup ..pi../ = 26/sup -/) have been found. The g factor of the second isomeric state was measured to be g = 0.55 +- 0.06. The present experimental data compares well with microscopic calculations which imply an oblate shape for /sup 152/Dy at high angular momenta (I/sup ..pi../ > or = 16/sup +/).
Research Organization:
Centre de Recherches Nucleaires et Universite Louis Pasteur, 67037 Strasbourg, France
OSTI ID:
6333282
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:1; ISSN PRLTA
Country of Publication:
United States
Language:
English

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651725* -- Nuclear Properties & Reactions
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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
CERIUM 140 TARGET
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
DEFORMATION
DYSPROSIUM 152
DYSPROSIUM ISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA SPECTRA
HEAVY ION REACTIONS
HIGH SPIN STATES
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITIONS
ISOTOPES
LIFETIME
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
NUCLEAR DEFORMATION
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OXYGEN 16 REACTIONS
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SHELL MODELS
SPECTRA
SPIN
TARGETS
YRAST STATES