Electromagnetic processes induced by electron scattering off few-nucleon systems are theoretically
investigated in the non-relativistic formalism. Non-relativistic one-body nuclear current
operators are used with a parametrization of nucleon electromagnetic form factors based on
recent experimental nucleon scattering data. Electromagnetic form factors of three-nucleon
and four-nucleon systems are calculated from elastic electron-nucleus scattering information.
Nuclear response functions used in the determination of differential cross sections for inclusive
and exclusive quasi-elastic electron-nucleon scattering from the 4He nucleus are also calculated.
Final-state interactions in the quasi-elastic nucleon knockout process are explicitly taken into
account using the Glauber approximation. The sensitivity of the response functions to the
final-state interactions is investigated.
The Antisymmetrized Molecular Dynamics approach with angular momentum and parity projection
is employed to construct ground state wave functions for the nuclei. A reduced form of
the realistic Argonne V18 nucleon-nucleon potential is used to describe nuclear Hamiltonian.
A convenient numerical technique of approximating expectation values of nuclear Hamiltonian
operators is employed. The constructed wave functions are used to calculate ground-state energies,
root-mean-square radii and magnetic dipole moments of selected light nuclei. The theoretical
predictions of the nuclear properties for the selected nuclei give a satisfactory description
of experimental values. The Glauber approximation is combined with the Antisymmetrized
Molecular Dynamics to generate wave functions for scattering states in quasi-elastic scattering
processes. The wave functions are then used to study proton knockout reactions in the 4He
nucleus. The theoretical predictions of the model reproduce experimental observation quite well. / Physics / Ph D. (Physics)
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:unisa/oai:umkn-dsp01.int.unisa.ac.za:10500/4885 |
| Date | 11 1900 |
| Creators | Rampho, Gaotsiwe Joel |
| Contributors | Sofianos, S. A., Braun, M. |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Type | Thesis |
| Format | 1 online resource (iv, 135 leaves) |
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