Persisting domination of the octupole over the quadrupole degrees of freedom and the new type of transitional nuclei: High-spin behavior of sup 218 Ra

Journal Article · Mon Dec 11 04:00:00 EST 1989 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.63.2645· OSTI ID:7162968

Schulz, N; Vanin, V; Aiche, M; Chevallier, A; Chevallier, J; Sens, J C ^[1]; Briancon, C; Cwiok, S; Ruchowska, E ^[2]; Fernandez-Niello, J; Mittag, C ^[3]; Dudek, J ^[1]

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1. Centre de Recherches Nucleaires et Universite Louis Pasteur, 67037 Strasbourg, (France)
2. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, 91406 Orsay, (France)
3. Sektion Physik, Universitaet Munchen, 8046 Garching, Federal (Republic of Germany)

High-spin states up to {ital I}=31{sup {minus}} have been studied in the {sup 218}Ra nucleus and the staggering sequence of levels of positive and negative parity persists up to highest level. This observation supports the idea that in some nuclei the high-spin excitations may primarily be dominated by deformations which do not conserve the intrinsic parity (such as octupole, {lambda}=3, and higher odd-{lambda} multipolarities) rather than by the usual'' quadrupole ({lambda}=2) and possibly higher even-{lambda} multipolarities.

• OSTI ID: 7162968
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 63:24; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALINE EARTH ISOTOPES
ANGULAR MOMENTUM
BRANCHING RATIO
CARBON 14 REACTIONS
CHARGED-PARTICLE REACTIONS
DEFORMED NUCLEI
DIRECT REACTIONS
DYSPROSIUM
E1-TRANSITIONS
E2-TRANSITIONS
ELEMENTS
ENERGY
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
HEAVY ION REACTIONS
HEAVY NUCLEI
INVARIANCE PRINCIPLES
ISOTOPES
LEAD 208 TARGET
MATRIX ELEMENTS
METALS
MEV RANGE
MEV RANGE 10-100
MICROSEC LIVING RADIOISOTOPES
MULTIPOLE TRANSITIONS
NUCLEAR REACTIONS
NUCLEI
P INVARIANCE
PARTICLE PROPERTIES
POTENTIAL ENERGY
QUASI PARTICLES
RADIOISOTOPES
RADIUM 218
RADIUM ISOTOPES
RARE EARTHS
SPIN
TARGETS
TRANSFER REACTIONS