{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/80461"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/80461","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Proton -Deuteron Elastic Scattering and Three -Nucleon Forces","abstract":"The spin observables Ay, iT 11, and Cy,y in proton-deuteron elastic scattering were measured over the angular range 65&deg; < theta cm < 115&deg; at a proton energy Tlab = 197 MeV. These data were acquired with a polarized proton beam and an internal vector-polarized deuteron gas target at the Indiana University Cyclotron Facility. The target was polarized by spin exchange with optically-pumped potassium; this experiment was the first to use this novel technique for polarizing hydrogen and deuterium. The data have been compared to existing Faddeev calculations using modern two-nucleon potentials which accurately reproduce the available two-nucleon scattering data. The calculations were also performed with the addition of the Tucson-Melbourne three-nucleon potential to identify kinematic regimes where the three-nucleon force makes a significant contribution. One such regime is in the vicinity of the minimum in the differential cross section for nucleon-deuteron elastic scattering at nucleon energies T lab &gsim; 100 MeV, which includes the region covered by this experiment. The failure of calculations using only two-nucleon potentials to reproduce the results of this experiment is interpreted as evidence that some type of three-nucleon force is needed to explain the data.","abstract_html":"The spin observables Ay, iT 11, and Cy,y in proton-deuteron elastic scattering were measured over the angular range 65&amp;deg; &lt; theta cm &lt; 115&amp;deg; at a proton energy Tlab = 197 MeV. These data were acquired with a polarized proton beam and an internal vector-polarized deuteron gas target at the Indiana University Cyclotron Facility. The target was polarized by spin exchange with optically-pumped potassium; this experiment was the first to use this novel technique for polarizing hydrogen and deuterium. The data have been compared to existing Faddeev calculations using modern two-nucleon potentials which accurately reproduce the available two-nucleon scattering data. The calculations were also performed with the addition of the Tucson-Melbourne three-nucleon potential to identify kinematic regimes where the three-nucleon force makes a significant contribution. One such regime is in the vicinity of the minimum in the differential cross section for nucleon-deuteron elastic scattering at nucleon energies T lab &amp;gsim; 100 MeV, which includes the region covered by this experiment. The failure of calculations using only two-nucleon potentials to reproduce the results of this experiment is interpreted as evidence that some type of three-nucleon force is needed to explain the data.","abstract_has_math":false,"creators":["Cadman, Robert Victor"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Roy J. Holt"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:02:33Z","date_published":"2015-09-25T20:02:33Z","updated_at":"2026-07-22T22:26:14Z","subjects":["Physics, Nuclear"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3017033"],"render_values":[{"text":"(MiAaPQ)AAI3017033","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/80461","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Roy J. 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These data were acquired with a polarized proton beam and an internal vector-polarized deuteron gas target at the Indiana University Cyclotron Facility. The target was polarized by spin exchange with optically-pumped potassium; this experiment was the first to use this novel technique for polarizing hydrogen and deuterium. The data have been compared to existing Faddeev calculations using modern two-nucleon potentials which accurately reproduce the available two-nucleon scattering data. The calculations were also performed with the addition of the Tucson-Melbourne three-nucleon potential to identify kinematic regimes where the three-nucleon force makes a significant contribution. One such regime is in the vicinity of the minimum in the differential cross section for nucleon-deuteron elastic scattering at nucleon energies T lab &gsim; 100 MeV, which includes the region covered by this experiment. The failure of calculations using only two-nucleon potentials to reproduce the results of this experiment is interpreted as evidence that some type of three-nucleon force is needed to explain the data.","Made available in DSpace on 2015-09-25T20:02:33Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3017033.pdf: 4512361 bytes, checksum: aa65984d6f3a2e60f95b1ea6f23224c0 (MD5) Previous issue date: 2001","Embargo set by: Seth Robbins for item 81743 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs","U of I Only","108 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2001."]},{"key":"dc:title","label":"Title","values":["Proton -Deuteron Elastic Scattering and Three -Nucleon Forces"]}]}],"canonical_facts":{"dc:contributor":["Roy J. Holt"],"dc:creator":["Cadman, Robert Victor"],"dc:date":["2015-09-25T20:02:33Z","10000-01-01","2001"],"dc:description":["The spin observables Ay, iT 11, and Cy,y in proton-deuteron elastic scattering were measured over the angular range 65&deg; < theta cm < 115&deg; at a proton energy Tlab = 197 MeV. These data were acquired with a polarized proton beam and an internal vector-polarized deuteron gas target at the Indiana University Cyclotron Facility. The target was polarized by spin exchange with optically-pumped potassium; this experiment was the first to use this novel technique for polarizing hydrogen and deuterium. The data have been compared to existing Faddeev calculations using modern two-nucleon potentials which accurately reproduce the available two-nucleon scattering data. The calculations were also performed with the addition of the Tucson-Melbourne three-nucleon potential to identify kinematic regimes where the three-nucleon force makes a significant contribution. One such regime is in the vicinity of the minimum in the differential cross section for nucleon-deuteron elastic scattering at nucleon energies T lab &gsim; 100 MeV, which includes the region covered by this experiment. The failure of calculations using only two-nucleon potentials to reproduce the results of this experiment is interpreted as evidence that some type of three-nucleon force is needed to explain the data.","Made available in DSpace on 2015-09-25T20:02:33Z (GMT). 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