Intermediate structure at 19. 7 MeV in the /sup 16/O + /sup 12/C system (a heavy ion resonance)
Thesis/Dissertation
·
OSTI ID:5976383
The intermediate width structure observed around 19.7 MeV in excitation functions of the system /sup 16/O + /sup 12/C has been investigated extensively using various techniques. (i) Angular distributions were measured between 19.5 and 21.0 MeV in steps of approximately 125 keV. The elastic scattering angular distributions were investigated with a partial phase-shift analysis. S-matrix elements were determined for a limited number of partial waves at each energy. From the energy dependence of the S-matrix element with partial wave I = 14, it was determined that the 19.7 MeV structure is, in part, due to a resonance with spin J/sup ..pi../ = 14/sup +/, a fact that could not be proven before. (ii) Fine step excitation functions were measured (..delta..E = 11 keV) over the 19.7 MeV structure. These measurements revealed that substructure is present within this energy region. It is argued that this substructure is of statistical origin, i.e., due to formation and decay of a compound nucleus. (iii) Angular correlation measurements were performed for the /sup 12/C(/sup 16/O, /sup 12/C)/sup 16/O(3/sup -/,6.13 MeV) reaction around 19.7 MeV. It was found that the resonant amplitude in this channel is not large enough to dominate the angular correlation function. Therefore, no quantitative analysis was possible and the presence of a resonance could not be shown here.
- Research Organization:
- State Univ. of New York, Stony Brook (USA)
- OSTI ID:
- 5976383
- Country of Publication:
- United States
- Language:
- English
Similar Records
Experimental studies of the resonance at E/sub c.m./ = 19.7 MeV in the $sup 12$C + $sup 16$O system
Intermediate structure resonances in the inelastic scattering of /sup 12/C on /sup 16/O
Elastic scattering of sup 14 C+ sup 12 C, sup 14 C+ sup 16 O, and sup 14 C+ sup 18 O
Journal Article
·
Sun Nov 30 23:00:00 EST 1975
· Phys. Rev., C, v. 12, no. 6, pp. 1907-1917
·
OSTI ID:4102797
Intermediate structure resonances in the inelastic scattering of /sup 12/C on /sup 16/O
Journal Article
·
Sat Jul 01 00:00:00 EDT 1978
· Phys. Rev., C; (United States)
·
OSTI ID:7021198
Elastic scattering of sup 14 C+ sup 12 C, sup 14 C+ sup 16 O, and sup 14 C+ sup 18 O
Thesis/Dissertation
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5017034
Related Subjects
651325* -- Nuclear Properties & Reactions
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CORRELATIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY RANGE
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FUNCTIONS
HEAVY ION REACTIONS
INFORMATION
MATRICES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUMERICAL DATA
OXYGEN 16 REACTIONS
RESONANCE
S MATRIX
SCATTERING
TARGETS
A=6-19
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
ANGULAR DISTRIBUTION
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CORRELATIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ENERGY RANGE
EXCITATION FUNCTIONS
EXPERIMENTAL DATA
FUNCTIONS
HEAVY ION REACTIONS
INFORMATION
MATRICES
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUMERICAL DATA
OXYGEN 16 REACTIONS
RESONANCE
S MATRIX
SCATTERING
TARGETS