Unexpected structure in the E2 quasicontinuum spectrum of /sup 154/Dy
Conference
·
OSTI ID:6796775
The evolution of the ..gamma.. quasicontinuum spectrum with neutron number has been investigated in the sequence of dysprosium isotopes /sup 152,154,156/Dy. The three nuclei display a pronounced collective E2 component. In /sup 154/Dy this component shows an unexpected splitting into two distinct parts, signifying a structural change along the ..gamma.. cascade. The E2 and statistical components can be reproduced in simple ..gamma.. cascade calculations; in /sup 152/Dy and /sup 156/Dy only rotational bands were included, whereas in /sup 154/Dy additional vibration-like transitions were required to reproduce the two E2 peaks. 11 refs., 2 figs.
- Research Organization:
- Argonne National Lab., IL (USA); Notre Dame Univ., IN (USA); Purdue Univ., Lafayette, IN (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6796775
- Report Number(s):
- CONF-880656-1; ON: DE89000546
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
653001 -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
DISTRIBUTION
DYSPROSIUM 154
DYSPROSIUM ISOTOPES
ENERGY LEVELS
ENERGY SPECTRA
EVEN-EVEN NUCLEI
EXCITED STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
NUCLEAR STRUCTURE
NUCLEI
PHASE TRANSFORMATIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTRA
A=150-189
Experimental
653001 -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
ANGULAR DISTRIBUTION
DISTRIBUTION
DYSPROSIUM 154
DYSPROSIUM ISOTOPES
ENERGY LEVELS
ENERGY SPECTRA
EVEN-EVEN NUCLEI
EXCITED STATES
INTERMEDIATE MASS NUCLEI
ISOTOPES
NUCLEAR STRUCTURE
NUCLEI
PHASE TRANSFORMATIONS
RADIOISOTOPES
RARE EARTH ISOTOPES
RARE EARTH NUCLEI
SPECTRA