Natural parity states in the neon-20 compound nucleus via. cap alpha. + O-16 scattering
Thesis/Dissertation
·
OSTI ID:6951618
Absolute differential cross sections for the elastic scattering of ..cap alpha.. particles by oxygen for 9.2 < E/sub ..cap alpha../ < 13.5 MeV and an analysis in terms of excited states of /sup 20/Ne are reported. The analysis employed 60 overlapping resonances in /sup 20/Ne for which level parameters are extracted, plus slowly varying background terms. Many of the levels (27) are new while 30 confirm or clarify past assignments. Three disagree with past results. A pair (e/sup +/e/sup -/) detector designed to signal inelastic scattering to /sup 16/O*(0/sup +/;6.05 MeV), a state which decays strongly to /sup 16/O*(0/sup +/;6.05 MeV) is also described. The levels reported herein are compared with assignments made elsewhere using both /sup 16/O(..cap alpha..,..cap alpha../sub 0/)/sup 16/O and other reactions. Low spin states reported in /sup 19/F(p,..cap alpha../sub 0/)/sup 16/O are barely perceptible in the present study since higher spin levels usually dominate the cross section. Some of these higher spin states are preferentially excited in heavy-ion (A greater than or equal to 4) transfer reactions such as /sup 12/C(/sup 12/C,..cap alpha..)/sup 20/Ne or /sup 16/O(/sup 12/C,/sup 8/Be)/sup 20/Ne where ..cap alpha.. branching ratios to /sup 16/O/sub gs/ were determined and can be compared to our results.
- Research Organization:
- Wisconsin Univ., Madison (USA)
- OSTI ID:
- 6951618
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Thesis/Dissertation
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Thesis/Dissertation
·
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OSTI ID:5983396
Spectroscopy of high spin states in /sup 16/O and /sup 20/Ne using the (/sup 12/C,/sup 8/Be)(. cap alpha. /sub 0/) reaction
Journal Article
·
Wed Oct 31 23:00:00 EST 1979
· Phys. Rev., C; (United States)
·
OSTI ID:5937073
Related Subjects
651325 -- Nuclear Properties & Reactions
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 REACTIONS
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NEON 20
NEON ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
OXYGEN 16 TARGET
PARTICLE PROPERTIES
SCATTERING
SPIN
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 REACTIONS
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELASTIC SCATTERING
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
INFORMATION
ISOTOPES
LIGHT NUCLEI
MEV RANGE
MEV RANGE 01-10
MEV RANGE 10-100
NEON 20
NEON ISOTOPES
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
OXYGEN 16 TARGET
PARTICLE PROPERTIES
SCATTERING
SPIN
STABLE ISOTOPES
TARGETS