Pion scattering to collective excitations in /sup 90/Zr and /sup 118/Sn
Journal Article
·
· Phys. Rev. C; (United States)
Inelastic scattering of 163 MeV ..pi../sup -/ and ..pi../sup +/ to the collective states of /sup 90/Zr and /sup 118/Sn was used to determine the neutron-proton composition of the transitions. The lowest 2/sup +/ and 3/sup -/ states were examined for both targets, as were the low-energy octupole, giant quadrupole, and giant monopole excitations. Only slight deviations from the features expected for a hydrodynamic model are observed for the low-lying 3/sup -/ and 2/sup +/ states of /sup 118/Sn, but these states are observed to be proton-like in /sup 90/Zr. The giant quadrupole resonances and giant monopole resonances in both targets show a significantly greater ..pi../sup -/ than ..pi../sup +/ strength, while the low-energy octupole resonance is excited symmetrically.
- Research Organization:
- Nuclear Physics Laboratory, Department of Physics, University of Colorado, Boulder, Colorado 80309
- OSTI ID:
- 5854232
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 35:3; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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· Physical Review, C (Nuclear Physics); (USA)
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Related Subjects
651720* -- Nuclear Properties & Reactions
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
COLLECTIVE MODEL
DISTORTED WAVE THEORY
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
GIANT RESONANCE
HADRON REACTIONS
INELASTIC SCATTERING
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
RADIOISOTOPES
RESONANCE
SCATTERING
STABLE ISOTOPES
TARGETS
TIN 118
TIN 118 TARGET
TIN ISOTOPES
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM ISOTOPES
A=90-149
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
COLLECTIVE EXCITATIONS
COLLECTIVE MODEL
DISTORTED WAVE THEORY
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXCITATION
GIANT RESONANCE
HADRON REACTIONS
INELASTIC SCATTERING
INTERMEDIATE MASS NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MATHEMATICAL MODELS
MESON REACTIONS
MEV RANGE
MEV RANGE 100-1000
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PION MINUS REACTIONS
PION PLUS REACTIONS
PION REACTIONS
RADIOISOTOPES
RESONANCE
SCATTERING
STABLE ISOTOPES
TARGETS
TIN 118
TIN 118 TARGET
TIN ISOTOPES
ZIRCONIUM 90
ZIRCONIUM 90 TARGET
ZIRCONIUM ISOTOPES