{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/23521"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/23521","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Photoproduction of D(*,+/-) and D(0) mesons","abstract":"Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:05:02Z Item is restricted indefinitely.","abstract_html":"Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:05:02Z Item is restricted indefinitely.","abstract_has_math":false,"creators":["Jaross, Glen Richard"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics, Elementary Particles and High Energy","degree_department":null,"school":null,"contributors":["Wiss, J.E."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T14:17:17Z","date_published":"2011-05-07T14:17:17Z","updated_at":"2026-07-22T22:25:22Z","subjects":["Physics, Elementary Particles and High Energy"],"languages":["eng"],"rights":["Copyright 1991 Jaross, Glen Richard"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI9124434","AAI9124434"],"render_values":[{"text":"(UMI)AAI9124434","href":null,"code":true},{"text":"AAI9124434","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/23521","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Wiss, J.E."]},{"key":"dc:creator","label":"Author","values":["Jaross, Glen Richard"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T14:17:17Z","10000-01-01","1991"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics, Elementary Particles and High Energy"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Physics, Elementary Particles and High Energy"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1991 Jaross, Glen Richard"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI9124434","AAI9124434","http://hdl.handle.net/2142/23521"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:05:02Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:31:07-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only","The charmed mesons D$\\sp\\circ$ and D$\\sp{\\*\\pm}$ have been observed in photon-nucleus collisions at the FNAL Wide Band Laboratory. A sample of 5500 inclusive D$\\sp\\circ$ events and 1400 $\\rm D\\sp{\\*\\pm} \\to D\\sp\\circ\\pi\\sp\\pm$ events were used to study charm production mechanisms and D$\\sp\\circ$ meson decay dynamics.","The cross section for producing D$\\sp\\circ$ and D$\\sp{\\*\\pm}$ mesons has been measured in the K$\\sp\\pm\\pi\\sp\\mp$ and K$\\sp\\pm\\pi\\sp-\\pi\\sp+\\pi\\sp\\mp$ decay modes of the D$\\sp\\circ$ meson as a function of incident photon energy and Feynman x. The results agree reasonably well with previous measurements.","The mean lifetime of the D$\\sp\\circ$ meson has been measured as: $\\tau\\sb{D}$ = 0.431 $\\pm$.010 $\\pm$.023 picoseconds using a sample of 2913 $\\pm$ 101 events. The decay $\\rm D\\sp{\\*\\pm}\\to (K\\sp+K\\sp-)\\pi\\sp\\pm$ has been observed at a level of 56 $\\pm$ 14 events, and its branching ratio was calculated to be$${\\Gamma(D\\sp{\\*\\pm} \\to (K\\sp+K\\sp-)\\pi\\sp\\pm)\\over \\Gamma(D\\sp{\\*\\pm} \\to (K\\sp+\\pi\\sp-)\\pi)} = .118 \\pm .032$$The decay D$\\sp\\circ\\to\\pi\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-$ was also observed. Its branching ratio$${\\Gamma(D\\sp\\circ \\to \\pi\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-)\\over \\Gamma(D\\sp\\circ \\to K\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-)} = .114 \\pm .026$$was calculated on the basis of 235 $\\pm$ 43 events.","Made available in DSpace on 2011-05-07T14:17:17Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9124434.pdf: 8404127 bytes, checksum: 2376c5e204f19a12cb936d0c0c74e02b (MD5) Previous issue date: 1991"]},{"key":"dc:title","label":"Title","values":["Photoproduction of D(*,+/-) and D(0) mesons"]}]}],"canonical_facts":{"dc:contributor":["Wiss, J.E."],"dc:creator":["Jaross, Glen Richard"],"dc:date":["2011-05-07T14:17:17Z","10000-01-01","1991"],"dc:description":["Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T15:05:02Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:31:07-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only","The charmed mesons D$\\sp\\circ$ and D$\\sp{\\*\\pm}$ have been observed in photon-nucleus collisions at the FNAL Wide Band Laboratory. A sample of 5500 inclusive D$\\sp\\circ$ events and 1400 $\\rm D\\sp{\\*\\pm} \\to D\\sp\\circ\\pi\\sp\\pm$ events were used to study charm production mechanisms and D$\\sp\\circ$ meson decay dynamics.","The cross section for producing D$\\sp\\circ$ and D$\\sp{\\*\\pm}$ mesons has been measured in the K$\\sp\\pm\\pi\\sp\\mp$ and K$\\sp\\pm\\pi\\sp-\\pi\\sp+\\pi\\sp\\mp$ decay modes of the D$\\sp\\circ$ meson as a function of incident photon energy and Feynman x. The results agree reasonably well with previous measurements.","The mean lifetime of the D$\\sp\\circ$ meson has been measured as: $\\tau\\sb{D}$ = 0.431 $\\pm$.010 $\\pm$.023 picoseconds using a sample of 2913 $\\pm$ 101 events. The decay $\\rm D\\sp{\\*\\pm}\\to (K\\sp+K\\sp-)\\pi\\sp\\pm$ has been observed at a level of 56 $\\pm$ 14 events, and its branching ratio was calculated to be$${\\Gamma(D\\sp{\\*\\pm} \\to (K\\sp+K\\sp-)\\pi\\sp\\pm)\\over \\Gamma(D\\sp{\\*\\pm} \\to (K\\sp+\\pi\\sp-)\\pi)} = .118 \\pm .032$$The decay D$\\sp\\circ\\to\\pi\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-$ was also observed. Its branching ratio$${\\Gamma(D\\sp\\circ \\to \\pi\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-)\\over \\Gamma(D\\sp\\circ \\to K\\sp+\\pi\\sp-\\pi\\sp+\\pi\\sp-)} = .114 \\pm .026$$was calculated on the basis of 235 $\\pm$ 43 events.","Made available in DSpace on 2011-05-07T14:17:17Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9124434.pdf: 8404127 bytes, checksum: 2376c5e204f19a12cb936d0c0c74e02b (MD5) Previous issue date: 1991"],"dc:identifier":["(UMI)AAI9124434","AAI9124434","http://hdl.handle.net/2142/23521"],"dc:language":["eng"],"dc:rights":["Copyright 1991 Jaross, Glen Richard"],"dc:subject":["Physics, Elementary Particles and High Energy"],"dc:title":["Photoproduction of D(*,+/-) and D(0) mesons"],"dc:type":["text"],"thesis:degree_discipline":["Physics, Elementary Particles and High Energy"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:25:22Z"}