{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25618"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25618","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Search for semileptonic decays of photoproduced charmed mesons","abstract":"In the broad band neutral beam at Fermi1ab, a search for photoproduction of charmed D mesons has been done using photons of 100 to 300 GeV. The reaction considered was [equation] s No statistically significant evidence for D production is observed based on the Ksnpi± mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of sigma(yp -> DD + X)~500 nb, however this is dependent on branching ratios and photoproduction models. An appendix contains data on a similar search for semi1eptonic decays of charmed baryons.","abstract_html":"In the broad band neutral beam at Fermi1ab, a search for photoproduction of charmed D mesons has been done using photons of 100 to 300 GeV. The reaction considered was [equation] s No statistically significant evidence for D production is observed based on the Ksnpi± mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of sigma(yp -> DD + X)~500 nb, however this is dependent on branching ratios and photoproduction models. An appendix contains data on a similar search for semi1eptonic decays of charmed baryons.","abstract_has_math":false,"creators":["Coleman, Richard Neal"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Wattenberg, A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-07-01T17:05:05Z","date_published":"2011-07-01T17:05:05Z","updated_at":"2026-07-22T22:25:24Z","subjects":["semileptonic decays","photoproduction","charmed mesons","broad band neutral beam"],"languages":["en"],"rights":["1977 Richard Neal Coleman"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["651787"],"render_values":[{"text":"651787","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25618","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Wattenberg, A."]},{"key":"dc:creator","label":"Author","values":["Coleman, Richard Neal"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-07-01T17:05:05Z","10000-01-01","1977"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"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":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["semileptonic decays","photoproduction","charmed mesons","broad band neutral beam"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1977 Richard Neal Coleman"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["651787","http://hdl.handle.net/2142/25618"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["In the broad band neutral beam at Fermi1ab, a search for photoproduction of charmed D mesons has been done using photons of 100 to 300 GeV. The reaction considered was [equation] s No statistically significant evidence for D production is observed based on the Ksnpi± mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of sigma(yp -> DD + X)~500 nb, however this is dependent on branching ratios and photoproduction models. An appendix contains data on a similar search for semi1eptonic decays of charmed baryons.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-01T17:05:05Z No. of bitstreams: 1 1977_coleman.pdf: 2240096 bytes, checksum: 48fbefdd4e097afcf42c6dfe0e2b5491 (MD5)","Made available in DSpace on 2011-07-01T17:05:05Z (GMT). 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The reaction considered was [equation] s No statistically significant evidence for D production is observed based on the Ksnpi± mass spectrum. The sensitivity of the search is commensurate with theoretical estimates of sigma(yp -> DD + X)~500 nb, however this is dependent on branching ratios and photoproduction models. An appendix contains data on a similar search for semi1eptonic decays of charmed baryons.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-01T17:05:05Z No. of bitstreams: 1 1977_coleman.pdf: 2240096 bytes, checksum: 48fbefdd4e097afcf42c6dfe0e2b5491 (MD5)","Made available in DSpace on 2011-07-01T17:05:05Z (GMT). No. of bitstreams: 1 1977_coleman.pdf: 2240096 bytes, checksum: 48fbefdd4e097afcf42c6dfe0e2b5491 (MD5) Previous issue date: 1977","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-01T17:05:05Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:30-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["651787","http://hdl.handle.net/2142/25618"],"dc:language":["en"],"dc:rights":["1977 Richard Neal Coleman"],"dc:subject":["semileptonic decays","photoproduction","charmed mesons","broad band neutral beam"],"dc:title":["Search for semileptonic decays of photoproduced charmed mesons"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}