Unnatural parity levels at high excitation in /sup 20/Ne
Journal Article
·
· Phys. Rev., C; (United States)
..gamma.. decaying states at high excitation in /sup 20/Ne have been studied via the /sup 12/C(/sup 12/C, ..cap alpha gamma..)/sup 20/Ne reaction in an attempt to identify new unnatural parity levels in /sup 20/Ne. In addition to ..gamma.. ray decay schemes, accurate measurements of the ratio of cross sections at average scattering angles of 12/sup 0/ and 1/sup 0/ were made, and the combination of a strong ..gamma.. decay mode and vanishing cross section at 0/sup 0/ were taken as the signature of an unnatural parity level. Previously suggested unnatural parity levels at 9.88 +- 0.03, 10.69 +- 0.02, 11.56 +- 0.02, and 11.67 +- 0.03 MeV have been confirmed, and limits on their spins and parities have been established from the ..gamma.. ray decay schemes. The results are compared with shell model calculations. (AIP)
- Research Organization:
- Physics Department, University of Pennsylvania, Philadelphia, Pennsylvania 19174
- OSTI ID:
- 7356151
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:3; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651325 -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651423* -- Nuclear Properties & Reactions
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Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
BRANCHING RATIO
CARBON 12 REACTIONS
CARBON 12 TARGET
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA SPECTRA
HEAVY ION REACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NEON 20
NEON ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
SHELL MODELS
SPECTRA
STABLE ISOTOPES
TARGETS
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651423* -- Nuclear Properties & Reactions
A=20-38
Experimental-- Energy Levels & Transitions-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA PARTICLES
ANGULAR DISTRIBUTION
BRANCHING RATIO
CARBON 12 REACTIONS
CARBON 12 TARGET
CHARGED PARTICLES
CHARGED-PARTICLE REACTIONS
COINCIDENCE SPECTROMETRY
COMPOUND-NUCLEUS REACTIONS
CROSS SECTIONS
DISTRIBUTION
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA SPECTRA
HEAVY ION REACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NEON 20
NEON ISOTOPES
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PARITY
PARTICLE PROPERTIES
SHELL MODELS
SPECTRA
STABLE ISOTOPES
TARGETS