Contribution of alpha cluster exchange to elastic and inelastic /sup 16/O + /sup 20/Ne scattering

Journal Article · Mon Nov 01 04:00:00 EST 1976 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.14.1824· OSTI ID:7346706

Stock, R; Jahnke, U; Hendrie, D L; Mahoney, J; Maguire, C F; Schneider, W F.W.; Scott, D K; Wolschin, G

Angular distributions for elastic and inelastic transitions in /sup 20/Ne + /sup 16/O scattering have been measured at E (/sup 20/Ne) = 50 MeV. For the 0/sup +/, 2/sup +/, and 4/sup +/ members of the /sup 20/Ne ground-state rotational band, the angular distributions exhibit pronounced backward peaking characteristic of an ..cap alpha..-cluster exchange mechanism. The analysis of the ground-state transition in the first-order elastic transfer model yields no satisfactory fit although microscopic cluster form factors and full recoil corrections are employed. A coupled channels calculation for the 0/sup +/, 2/sup +/, and 4/sup +/ transitions reveals very strong coupling effects, indicating that the coherent superposition of first-order optical model and distorted-wave Born-approximation amplitudes may not be an adequate model for these reactions. (AIP)

• Research Organization: Fachbereich Physik, Universitat Marburg, Marburg, West Germany
• OSTI ID: 7346706
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 14:5; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CLUSTER MODEL
COUPLED CHANNEL THEORY
DIRECT REACTIONS
DISTRIBUTION
DWBA
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXCITED STATES
FOUR-NUCLEON TRANSFER REACTIONS
HEAVY ION REACTIONS
ISOTOPES
LIGHT NUCLEI
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MULTI-NUCLEON TRANSFER REACTIONS
NEON 20 REACTIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
OPTICAL MODELS
OXYGEN 16
OXYGEN 16 TARGET
OXYGEN ISOTOPES
ROTATIONAL STATES
ROTATIONAL STATES ELASTIC SCATTERING
SCATTERING
STABLE ISOTOPES
TARGETS
TRANSFER REACTIONS