Spin structure functions of the nucleon in the region of large x and small to moderate Q2 continue to be of high current interest. The first moment of the spin structure function g1, Γ1, goes through a rapid transition from the photon point (Q2 = 0), where it is constrained by the Gerasimov-Drell-Hearn sum rule, to the deep inelastic limit where it is sensitive to the nucleon spin fraction carried by quarks. The interesting behavior in the transition region is dominated by baryon resonance excitations. We concluded an experiment to measure these observables for deuterium as part of the “EG1” run group in Jefferson Lab's Hall B. We used a highly polarized electron beam with energies from 1.6 GeV to 5.7 GeV and a cryogenic polarized ND3 target together with the CEBAF Large Acceptance Spectrometer (CLAS) to accumulate over 11 billion events. In this thesis, we present results for the spin structure function [special characters omitted](x, Q2), as well as its first moment, [special characters omitted](Q2) in and above the resonance region over a Q2 range from 0.05 to 5 GeV2, based on the data taken with beam energies of 1.6 and 5.7 GeV. We also extract the behavior of [special characters omitted](x) at large x. Our data are consistent with the Hyperfine-perturbed quark model calculation which predicts that [special characters omitted](x → 1) → 1. We also see evidence for duality in [special characters omitted](x, Q2) at Q2> 1.5 GeV2.
","abstract_html":"<p>Spin structure functions of the nucleon in the region of large <em>x</em> and small to moderate <em>Q</em><sup>2</sup> continue to be of high current interest. The first moment of the spin structure function <em>g</em><sub>1</sub>, Γ<sub>1</sub>, goes through a rapid transition from the photon point (<em>Q</em><sup>2</sup> = 0), where it is constrained by the Gerasimov-Drell-Hearn sum rule, to the deep inelastic limit where it is sensitive to the nucleon spin fraction carried by quarks. The interesting behavior in the transition region is dominated by baryon resonance excitations. We concluded an experiment to measure these observables for deuterium as part of the “EG1” run group in Jefferson Lab's Hall B. We used a highly polarized electron beam with energies from 1.6 GeV to 5.7 GeV and a cryogenic polarized ND<sub>3</sub> target together with the CEBAF Large Acceptance Spectrometer (CLAS) to accumulate over 11 billion events. In this thesis, we present results for the spin structure function [special characters omitted](<em>x, Q</em><sup>2</sup>), as well as its first moment, [special characters omitted](<em>Q</em><sup>2</sup>) in and above the resonance region over a <em>Q</em><sup>2</sup> range from 0.05 to 5 GeV<sup>2</sup>, based on the data taken with beam energies of 1.6 and 5.7 GeV. We also extract the behavior of [special characters omitted](<em>x</em>) at large <em>x</em>. Our data are consistent with the Hyperfine-perturbed quark model calculation which predicts that [special characters omitted](<em>x</em> → 1) → 1. We also see evidence for duality in [special characters omitted](<em>x, Q</em><sup>2</sup>) at <em>Q</em><sup>2</sup>> 1.5 GeV<sup>2</sup>.</p>","abstract_has_math":false,"creators":["Dharmawardane, Kahanawita G. Vipuli G."],"institution":null,"degree_name":"Doctor of Philosophy (PhD)","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Gail Dodge","John Donat","Sebastian Kuhn","Anatoly Radyushkin","Charles I. Sukenik"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2004,"date_issued":"2004-04-01T08:00:00Z","date_published":"2004-04-01T08:00:00Z","updated_at":"2026-07-24T03:34:18Z","subjects":["Deuteron","Nucleon","Resonance","Spin structure functions","Nuclear"],"languages":[],"rights":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://digitalcommons.odu.edu/physics_etds/31","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Gail Dodge","John Donat","Sebastian Kuhn","Anatoly Radyushkin","Charles I. Sukenik"]},{"key":"dc:creator","label":"Author","values":["Dharmawardane, Kahanawita G. Vipuli G."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2019-02-20T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Doctor of Philosophy (PhD)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Deuteron","Nucleon","Resonance","Spin structure functions","Nuclear"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:rights","label":"Dc Rights","values":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://digitalcommons.odu.edu/physics_etds/31"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Spin structure functions of the nucleon in the region of large x and small to moderate Q2 continue to be of high current interest. The first moment of the spin structure function g1, Γ1, goes through a rapid transition from the photon point (Q2 = 0), where it is constrained by the Gerasimov-Drell-Hearn sum rule, to the deep inelastic limit where it is sensitive to the nucleon spin fraction carried by quarks. The interesting behavior in the transition region is dominated by baryon resonance excitations. We concluded an experiment to measure these observables for deuterium as part of the “EG1” run group in Jefferson Lab's Hall B. We used a highly polarized electron beam with energies from 1.6 GeV to 5.7 GeV and a cryogenic polarized ND3 target together with the CEBAF Large Acceptance Spectrometer (CLAS) to accumulate over 11 billion events. In this thesis, we present results for the spin structure function [special characters omitted](x, Q2), as well as its first moment, [special characters omitted](Q2) in and above the resonance region over a Q2 range from 0.05 to 5 GeV2, based on the data taken with beam energies of 1.6 and 5.7 GeV. We also extract the behavior of [special characters omitted](x) at large x. Our data are consistent with the Hyperfine-perturbed quark model calculation which predicts that [special characters omitted](x → 1) → 1. We also see evidence for duality in [special characters omitted](x, Q2) at Q2> 1.5 GeV2.
"]},{"key":"dc:title","label":"Title","values":["Spin Structure Functions of the Deuteron Measured with CLAS in and Above the Resonance Region"]}]}],"canonical_facts":{"dc:contributor":["Gail Dodge","John Donat","Sebastian Kuhn","Anatoly Radyushkin","Charles I. Sukenik"],"dc:creator":["Dharmawardane, Kahanawita G. Vipuli G."],"dc:date.available":["2019-02-20T08:00:00Z"],"dc:description.abstract":["Spin structure functions of the nucleon in the region of large x and small to moderate Q2 continue to be of high current interest. The first moment of the spin structure function g1, Γ1, goes through a rapid transition from the photon point (Q2 = 0), where it is constrained by the Gerasimov-Drell-Hearn sum rule, to the deep inelastic limit where it is sensitive to the nucleon spin fraction carried by quarks. The interesting behavior in the transition region is dominated by baryon resonance excitations. We concluded an experiment to measure these observables for deuterium as part of the “EG1” run group in Jefferson Lab's Hall B. We used a highly polarized electron beam with energies from 1.6 GeV to 5.7 GeV and a cryogenic polarized ND3 target together with the CEBAF Large Acceptance Spectrometer (CLAS) to accumulate over 11 billion events. In this thesis, we present results for the spin structure function [special characters omitted](x, Q2), as well as its first moment, [special characters omitted](Q2) in and above the resonance region over a Q2 range from 0.05 to 5 GeV2, based on the data taken with beam energies of 1.6 and 5.7 GeV. We also extract the behavior of [special characters omitted](x) at large x. Our data are consistent with the Hyperfine-perturbed quark model calculation which predicts that [special characters omitted](x → 1) → 1. We also see evidence for duality in [special characters omitted](x, Q2) at Q2> 1.5 GeV2.
"],"dc:identifier":["https://digitalcommons.odu.edu/physics_etds/31"],"dc:rights":["In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
"],"dc:subject":["Deuteron","Nucleon","Resonance","Spin structure functions","Nuclear"],"dc:title":["Spin Structure Functions of the Deuteron Measured with CLAS in and Above the Resonance Region"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Doctor of Philosophy (PhD)"]},"updated_at":"2026-07-24T03:34:18Z"}