Inelastic electron scattering to negative parity states of /sup 28/Si
Journal Article
·
· Phys. Rev. C; (United States)
Negative-parity states of /sup 28/Si are studied by high-resolution inelastic electron scattering. The form factors of the 1/sup -/ (8.904), 5/sup -/ (9.702), 1/sup -/, 2/sup -/ (9.929), 3/sub 2//sup -/ (10.180), and 4/sup -/ T = 1 (12.664) states are determined for the first time, for momentum transfers between 0.9 and 2.4 fm/sup -1/. The 3/sub 1//sup -/ (6.879) state is studied by subtracting off the theoretical contribution of the nearby 4/sup +/ (6.889) state. An upper limit for the 5/sup -/ T = 1 (13.248) is established. The 3/sup -/ T = 0/6/sup -/ T = 0 complex (11.58) remains unresolved. We present evidence for oblate-prolate deformation changes in the 3/sup -/ T = 0 states. The experimental data are compared with predictions of the open-shell random phase approximation of Rowe and Wong. In /sup 28/Si, the open-shell random phase approximation is demonstrated to be extremely sensitive to the ground state wave function used, and other possible limitations of the open-shell random phase approximation are discussed.
- Research Organization:
- Department of Physics, University of Toronto, Toronto, Ontario, Canada M5S 1A7
- OSTI ID:
- 5957190
- Journal Information:
- Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 27:5; ISSN PRVCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
651423 -- Nuclear Properties & Reactions
A=20-38
Experimental-- Energy Levels & Transitions-- (-1987)
651425* -- Nuclear Properties & Reactions
A=20-38
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTRON REACTIONS
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FORM FACTORS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
RANDOM PHASE APPROXIMATION
SCATTERING
SILICON 28
SILICON 28 TARGET
SILICON ISOTOPES
SPIN
STABLE ISOTOPES
TARGETS
A=20-38
Experimental-- Energy Levels & Transitions-- (-1987)
651425* -- Nuclear Properties & Reactions
A=20-38
Experimental-- Nuclear Reactions & Scattering-- (-1987)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTRON REACTIONS
ENERGY LEVELS
ENERGY RANGE
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FORM FACTORS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
MEV RANGE
MEV RANGE 100-1000
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
PARITY
PARTICLE PROPERTIES
RANDOM PHASE APPROXIMATION
SCATTERING
SILICON 28
SILICON 28 TARGET
SILICON ISOTOPES
SPIN
STABLE ISOTOPES
TARGETS