Natural parity states of /sup 20/Ne for 12<15. 5 MeV
Resonant parameters (J/sup ..pi../,E/sub ..cap alpha../,GAMMA,GAMMA/sub ..cap alpha..//GAMMA) for 67 natural-parity levels in /sup 20/Ne result from the analysis of new high-resolution /sup 16/O(..cap alpha..,..cap alpha../sub 0/) /sup 16/O data. Accurate absolute differential cross sections were measured simultaneously at 19 angles for alphas scattered by thin O/sub 2/ gas targets in a differentially-pumped scattering chamber. High resolution beams and small energy steps (..delta..E/sub ..cap alpha../approx.5 keV) permitted observation of narrow resonances in the range 9.2<13.5 MeV (12.0<15.5 MeV). In addition, near E/sub ..cap alpha../ = 9.6 MeV (E/sub x/ = 12.44 MeV), a pair detector measured the total cross section to the 0/sup +/ state in /sup 16/O at 6.05 MeV. The pair data confirm a previously observed state at E/sub x/ = 12.44 MeV but elastic scattering data imply a GAMMA0/GAMMA = 62 +- 15% for a J/sup ..pi../ = 0/sup +/ level, in disagreement with the 13 +- 2% reported by Garman et al.
- Research Organization:
- University of Wisconsin, Madison, Wisconsin 53706
- OSTI ID:
- 5990783
- Journal Information:
- Phys. Rev. C; (United States), Vol. 31:3
- Country of Publication:
- United States
- Language:
- English
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Natural parity states in the neon-20 compound nucleus via. cap alpha. + O-16 scattering
/sup 20/Ne states observed via /sup 16/O(. cap alpha. ,. cap alpha. /sub i/)/sup 16/O
Related Subjects
ALPHA REACTIONS
COMPOUND-NUCLEUS REACTIONS
ELASTIC SCATTERING
NEON 20
ENERGY LEVELS
OXYGEN 16 TARGET
ANGULAR DISTRIBUTION
DIFFERENTIAL CROSS SECTIONS
EXPERIMENTAL DATA
MEV RANGE 01-10
MEV RANGE 10-100
PARITY
SPIN
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY RANGE
EVEN-EVEN NUCLEI
INFORMATION
ISOTOPES
LIGHT NUCLEI
MEV RANGE
NEON ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARTICLE PROPERTIES
SCATTERING
STABLE ISOTOPES
TARGETS
651325* - Nuclear Properties & Reactions
A=6-19
Experimental- Nuclear Reactions & Scattering- (-1987)
651423 - Nuclear Properties & Reactions
A=20-38
Experimental- Energy Levels & Transitions- (-1987)