Surface transparency in /sup 12/C elastic scattering from /sup 40,42,48/Ca
Journal Article
·
· Phys. Rev., C; (United States)
Angular distributions between 3 and 110 degrees in the laboratory system were measured for the elastic scattering of /sup 12/C form /sup 40,42,48/Ca at 51.0, 49.9, and 47.2 MeV, respectively. Pronounced oscillations were observed in the /sup 12/C + /sup 40/Ca angular distribution. Weaker oscillations were observed in the /sup 12/C + /sup 42/Ca angular distributions while none were seen in /sup 12/C + /sup 48/Ca. An optical-model analysis was performed using Woods-Saxon and folded potentials. Surface transparent potentials were found to parameterize the oscillatory structure of the forward-angle data of /sup 12/C + /sup 40/Ca. Stronger surface absorption in the /sup 12/C + /sup 42,48/Ca imaginary potentials apparently weakens or washes out any forward-angle oscillations. Optical potentials that fit forward-angle data of /sup 12/C + /sup 40/Ca also predict oscillatory structure in the excitation function at 180/sup 0/.
- Research Organization:
- Department of Physics, University of Chicago, Chicago, Illinois 60637
- OSTI ID:
- 6204993
- Journal Information:
- Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 19:3; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651525* -- Nuclear Properties & Reactions
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CALCIUM 40 TARGET
CALCIUM 42 TARGET
CALCIUM 48 TARGET
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EXCITATION FUNCTIONS
HEAVY ION REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
OPTICAL MODELS
POTENTIALS
REGGE POLES
SCATTERING
TARGETS
WOODS-SAXON POTENTIAL
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CALCIUM 40 TARGET
CALCIUM 42 TARGET
CALCIUM 48 TARGET
CARBON 12 REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EXCITATION FUNCTIONS
HEAVY ION REACTIONS
MEV RANGE
MEV RANGE 10-100
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
OPTICAL MODELS
POTENTIALS
REGGE POLES
SCATTERING
TARGETS
WOODS-SAXON POTENTIAL