$sup 19$F($sup 3$He,d)$sup 20$Ne reaction at 20-23 MeV
Journal Article
·
· Phys. Rev., C, v. 8, no. 5, pp. 1682-1691
OSTI ID:4321917
14 deutron gruoups populating levels to 10.26 MeV excitation in /sup 20/ Ne have been measured with the /sup 19/F(/sup 3/He, d)/sup 20/Ne reaction. Excitati on functions measured at theta /sub lab/= 25 and 45 deg from 20.0 to 21.2 MeV reveal little structure, and therefore probably little compound-nuclear contribution to the observed cross sections for the deutcron groups. In particular, the 2- level at 4.97 MeV excitation, strongly populated at E/sub /sup 3/He/ = 10 MeV, is weakly populated in the present energy range. The j- forbidden'' 41 level at 4.25 MeV excitation, on the other hand, is strongly populated in the present energy range. A collective-model coupled-channel Born- approximation analysis of angular distributions measured at E/sub //sup 3/He/= 21 and 23 MeV is better able to explain the data than distorted-wave born- approximation analysis for the positive-parity states. The negative-parity states are poorly described by both theories. (auth)
- Research Organization:
- Department of Physics, The Florida State University, Tallahassee, Florida 32306
- NSA Number:
- NSA-29-022881
- OSTI ID:
- 4321917
- Journal Information:
- Phys. Rev., C, v. 8, no. 5, pp. 1682-1691, Journal Name: Phys. Rev., C, v. 8, no. 5, pp. 1682-1691; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ANGULAR DISTRIBUTION-- COUPLED CHANNEL BORN APPROXIMATION-- DEFORMED NUCLEI-- DEUTERONS-- DIFFERENTIAL CROSS SECTIONS-- DWBA-- ENERGY SPECTRA-- EXCITATION FUNCTIONS-- FLUORINE 19-- HELIUM 3 REACTIONS-- MEV RANGE 10-100-- NEON 20-- NUCLEAR REACTION KINETICS-- ONE-NUCLEON TRANSFER REACTIONS-- STRIPPING
COLLECTIVE MODEL-- NEON 20-- ROTATIONAL STATES-- SHELL MODELS-- SPECTROSCOPIC FACTORS
N68351* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
6 <= A <= 19--Nuclear Reactions & Scattering
N68431 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Energy Levels & Transitions
COLLECTIVE MODEL-- NEON 20-- ROTATIONAL STATES-- SHELL MODELS-- SPECTROSCOPIC FACTORS
N68351* --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
6 <= A <= 19--Nuclear Reactions & Scattering
N68431 --Physics (Nuclear
Experimental)--Nuclear Properties & Reactions
20 <= A <= 38--Energy Levels & Transitions