Experimental search for nonfusion yield in the heavy residues emitted in the /sup 11/B+/sup 12/C reaction
The mechanism responsible for fusion cross section limitations in light heavy-ion systems has been the focus of numerous experimental and theoretical studies. Many of the experimental investigations have involved a study of the heavy residues emitted following the interaction of light heavy ions. One difficulty encountered in such studies is separating events from competing reaction mechanisms, such as direct transfer and incomplete fusion, from fusion-evaporation events. In the present work, direct and reverse reaction kinematics are exploited in an effort to determine the magnitude of the nonfusion strength in the heavy residue spectra for the interaction of /sup 11/B and /sup 12/C. It is particularly important that the /sup 11/B+ /sup 12/C fusion strength be properly identified, as it is the measured fusion strength in this entrance channel which in earlier studies clearly ruled out a fusion cross section limitation based upon having reached a critical density of compound nuclear states. In agreement with the earlier investigations, the present study reveals no significant nonfusion component in the heavy residue spectra for the /sup 11/B+ /sup 12/C reaction.
- Research Organization:
- Physics Department, Tennessee Technological University, Cookeville, Tennessee 38505
- DOE Contract Number:
- AS05-80ER10714
- OSTI ID:
- 5889722
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 33:4; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
BORON 11 REACTIONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
COMPOUND-NUCLEUS REACTIONS
COULOMB FIELD
CROSS SECTIONS
ELECTRIC FIELDS
ENERGY LEVELS
ENERGY SPECTRA
EVAPORATION MODEL
HEAVY ION REACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
ODD-EVEN NUCLEI
SODIUM 23
SODIUM ISOTOPES
SPECTRA
STABLE ISOTOPES
TARGETS