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CONTINUUM SPECTRA FROM THE Be$sup 9$ (He $sup 3$, /cap alpha/) 2 He$sup 4$ REACTION

Journal Article · · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D
;
Alpha particles from the Be/sup 9/(He/sup 3/, alpha )2He/sup 4/ reaction were recorded at observation angles from plus or minus to 140 deg using a broad- range spectrograph. Bombarding energies were 3.00 and 4.00 Mev. The alpha continuum was measured from the reaction threshold up to a corresponding excitation energy of 15. plus or minus Mev in the Be/sup 9/(He/sup 3/, alpha )Be/ sup 8/ reaction. The continuum is analyzed in terms of two possible decay modes involving spontaneous three-alpha disintegration of C/sup 12*/ or stepwise two- body decay through states in Be/sup 8*/. When Coulomb barrier effects are tsken into account, qualitative agreement with the data is obtained by assuming the reaction proceeds via the three-body process. The low-energy anomaly seen in the reactions B/sup 11/(p, alpha )Be/sup 8/ and Be/sup 9/(p,d)Be/sup was not observed. (auth)
Research Organization:
Univ. of Notre Dame, Ind.
NSA Number:
NSA-18-001067
OSTI ID:
4152990
Journal Information:
Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 132; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

ALPHA PARTICLES
ANGULAR DISTRIBUTION
BERYLLIUM 8
BERYLLIUM 9
CARBON 12
DECAY
ELECTRIC FIELDS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
HELIUM 3
HELIUM 4
MANY BODY PROBLEM
MEASURED VALUES
MEV RANGE
NUCLEAR REACTIONS
PHYSICS
RECORDING SYSTEMS
SPECTRA
SPECTROMETERS