Positive and negative pion elastic scattering on /sup 58/Ni, /sup 60/Ni, and /sup 64/Ni at 50 and 65 MeV
Thesis/Dissertation
·
OSTI ID:5676794
Elastic scattering data was successfully taken using the new Clamshell spectrometer. Angular distributions of elastic differential across sections were obtained at 50 MeV and 65 MeV using positive and negative pions scattered from /sup 58/Ni, /sup 60/Ni, and /sup 64/Ni. The data were compared to predictions made using the MSU optical potential. The ..pi../sup +/ data agreed fairly well with the predictions at both 50 MeV and 65 MeV while the corresponding ..pi../sup -/ data significantly disagreed with the predictions. The absorption parameters in the MSU potential were varied in an attempt to fit the data. A suitable fit was achieved for both ..pi../sup +/ and ..pi../sup -/ data at 50 MeV and 65 MeV. The real part of the p-wave absorption parameter was well determined but showed two distinct values for ..pi../sup +/ and ..pi../sup -/ indicating that there is a separate potential for ..pi../sup +/ and ..pi../sup -/ or that the absorption part of the potential is inadequately formulated.
- Research Organization:
- Virginia Polytechnic Inst. and State Univ., Blacksburg (USA)
- OSTI ID:
- 5676794
- 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)
651625 -- Nuclear Properties & Reactions
A=59-89
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
HADRON REACTIONS
INFORMATION
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NICKEL 58 TARGET
NICKEL 60 TARGET
NICKEL 64 TARGET
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUMERICAL DATA
OPTICAL MODELS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
POTENTIALS
SCATTERING
TARGETS
A=39-58
Experimental-- Nuclear Reactions & Scattering-- (-1987)
651625 -- Nuclear Properties & Reactions
A=59-89
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELASTIC SCATTERING
ENERGY RANGE
EXPERIMENTAL DATA
HADRON REACTIONS
INFORMATION
MESON REACTIONS
MEV RANGE
MEV RANGE 10-100
NICKEL 58 TARGET
NICKEL 60 TARGET
NICKEL 64 TARGET
NUCLEAR POTENTIAL
NUCLEAR REACTIONS
NUMERICAL DATA
OPTICAL MODELS
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
POTENTIALS
SCATTERING
TARGETS