A study of local exchange in continuum processes

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dc.contributor.advisorLane, Neal F.
dc.contributor.committeeMemberWalters, G. King
dc.contributor.committeeMemberHuang, Huey W.
dc.creatorO'Connell, James Kevin
dc.date.accessioned2018-12-18T21:15:58Z
dc.date.available2018-12-18T21:15:58Z
dc.date.issued1980
dc.descriptionText includes handwritten formulas
dc.description.abstractThe role of one electron orbitals in Many Body Theory and the Generalized Sudden Approximation is reviewed. Various approximations to the exact Hartree Fock static exchange potentials are discussed and a new, screened exchange potential is derived. Phase shifts for the elastic scattering of electrons from Helium, Neon and Argon and Photoionization cross sections for Lithium, Carbon, Oxygen, Neon and Argon were calculated and compared with the exact static exchange results. The screened exchange potential is the best approximation for Photoionization and the Hara exchange potential is the best for Scattering. Ground state eigenvalues, ionization energies and oscillator strengths have been calculated for the 2t2-la1 transition in Methane. The calculations were carried out using the Xalpha Multiple Scattering Method. The ground state eigenvalues were correctly predicted and the oscillator strengths lie within experimental limits.
dc.format.digitalOriginreformatted digital
dc.format.extent181 pp
dc.identifier.callnoThesis Phys. 1980 O'Connell
dc.identifier.citationO'Connell, James Kevin. "A study of local exchange in continuum processes." (1980) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/103990">https://hdl.handle.net/1911/103990</a>.
dc.identifier.digitalRICE1616
dc.identifier.urihttps://hdl.handle.net/1911/103990
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.titleA study of local exchange in continuum processes
dc.typeThesis
dc.type.materialText
thesis.degree.departmentPhysics
thesis.degree.disciplineNatural Sciences
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Arts
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