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ELASTIC SCATTERING OF ALPHA PARTICLES BY C$sup 12$ IN THE BOMBARDING ENERGY RANGE 10 to 19 Mev

Journal Article · · Physical Review (U.S.) Superseded in part by Phys.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
The scattering of alpha particles by C/sup 12/ was studied in the bombarding energy range 10 to 19 Mev. Many anomalies were observed in the excitation curves that correspond to O/sup 16/ compound system energy levels in the excitation energy range 14 to 21 Mev. Fifteen detailed angular distributions were measured and the data were analyzed with a smooth cuto of model, which was modified to include appropriate resonant phase shifts. The spins and parities of the more prominent resonances were assigned. Real well depths of 100 Mev or more were required in an optical-model analysis to yield theoretical cross sections comparable with experimental values. In general, opticalmodel fits were not satisfactory. Two series of levels in O/sup 16/ were observed which obey rotational band systematics. The substantial widths of the band members suggest an alpha-particle cluster configuration for these excited states. (auth)
Research Organization:
Florida State Univ., Tallahassee
NSA Number:
NSA-18-015254
OSTI ID:
4069795
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Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 133; ISSN PHRVA
Country of Publication:
Country unknown/Code not available
Language:
English