High- K barrier penetration in sup 174 Hf: A challenge to K selection
Journal Article
·
· Physical Review Letters; (USA)
- Department of Physics, University of Surrey, Guildford (United Kingdom) Niels Bohr Institute, Risoe, DK-4000 Roskilde (Denmark) Oliver Lodge Laboratory, University of Liverpool, Liverpool (United Kingdom)
A sensitive study of the decay of the deformation-aligned {ital K}=14, 4-{mu}s isomer in {sup 174}Hf has revealed a multitude of the {ital K}-forbidden branches to the ground-state rotational band and other low-{ital K} bands, in competition with the known decays to high-{ital K} bands. The isomeric transitions have consistently low hindrance factors. These anomalous findings in an axially symmetric deformed nucleus severely test our understanding of the {ital K}-selection rule. The isomeric decay to an {ital I}=12 rotation-aligned state, and its mixing with the {ital I}=12 yrast state, provide a partial explanation.
- OSTI ID:
- 6603826
- Journal Information:
- Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:4; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651820* -- Nuclear Properties & Reactions
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
COINCIDENCE METHODS
COUNTING TECHNIQUES
DATA
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
EXPERIMENTAL DATA
HAFNIUM 174
HAFNIUM ISOTOPES
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
NANOSEC LIVING RADIOISOTOPES
NUCLEAR DEFORMATION
NUCLEI
NUMERICAL DATA
OSMIUM 182
OSMIUM ISOTOPES
RADIOISOTOPES
ROTATIONAL STATES
SELECTION RULES
VIBRATIONAL STATES
YEARS LIVING RADIOISOTOPES
YRAST STATES
A=150-189
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
COINCIDENCE METHODS
COUNTING TECHNIQUES
DATA
DEFORMATION
ELECTRON CAPTURE RADIOISOTOPES
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITED STATES
EXPERIMENTAL DATA
HAFNIUM 174
HAFNIUM ISOTOPES
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
KEV RANGE
NANOSEC LIVING RADIOISOTOPES
NUCLEAR DEFORMATION
NUCLEI
NUMERICAL DATA
OSMIUM 182
OSMIUM ISOTOPES
RADIOISOTOPES
ROTATIONAL STATES
SELECTION RULES
VIBRATIONAL STATES
YEARS LIVING RADIOISOTOPES
YRAST STATES