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dc.contributor.supervisor Page, Shelley (Physics and Astronomy) Martin, Jeffrey (Physics and Astronomy) en
dc.contributor.author Coppens, Alexandre Francois Constant
dc.date.accessioned 2010-09-13T14:43:35Z
dc.date.available 2010-09-13T14:43:35Z
dc.date.issued 2010-09-13T14:43:35Z
dc.identifier.uri http://hdl.handle.net/1993/4182
dc.description.abstract Symmetry tests and more precisely parity violation experiments using the properties of the weak interaction give us unique insight into the internal hadronic structure of matter. The Gº experiment at Jefferson Laboratory used parity violating electron scattering to probe the strange quark contribution to the electromagnetic nucleon form factors, (GMs and GEs) as well as the axial contribution, (GAe). The data taken during the experiment provide further information on the axial transition form factor of the N - $\Delta$ transition, (GANΔ), as well as the scale of the low energy constant (dΔ) characterizing the parity violating γNΔ coupling. The analysis of backward angle Gº data taken with a liquid deuterium target to deduce the parity violating asymmetry for pion photoproduction on the Δ resonance, and the first experimental constraint on the value of dΔ, are reported in this thesis. The results showed that dΔ = (8.3 ± 25.3) gπ where the uncertainty is dominated by statistics, and that 75 percent of the theory range would be excluded by this measurement at 1 sigma. en
dc.format.extent 3099927 bytes
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.subject Delta resonance en
dc.subject Parity Violation en
dc.subject Gº experiment en
dc.subject low energy constant en
dc.subject pion photoproduction en
dc.subject nucleon structure en
dc.title Parity violating asymmetries in the Gº experiment: Pion photoproduction on the Δ resonance en
dc.degree.discipline Physics and Astronomy en
dc.contributor.examiningcommittee Gwinner, Gerald (Physics and Astronomy) Birchall, James (Physics and Astronomy) Schreckenbach, Georg (Chemistry) Hornidge, David (Mount Allison University) en
dc.degree.level Doctor of Philosophy (Ph.D.) en
dc.description.note October 2010 en


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