{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25299"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25299","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Observations of new cabibbo suppressed decays of the D meson","abstract":"\"We have searched for new decay modes of the charmed D meson using the Mark III detector at the SPEAR e+e-storage ring. Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the \"\"color suppressed\"\" decay D+ -> Phi pi+. We observe a cross section times branching ratio for the decay D+ -> K*Obar K+ to be .011 +-.006 +-.001 nb. Our results indicate a failure of the color suppression mechanism in D decays. We find no evidence for the W exchange decay. DO -> Phi KO.\"","abstract_html":""We have searched for new decay modes of the charmed D meson using the Mark III detector at the SPEAR e+e-storage ring. Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the ""color suppressed"" decay D+ -> Phi pi+. We observe a cross section times branching ratio for the decay D+ -> K*Obar K+ to be .011 +-.006 +-.001 nb. Our results indicate a failure of the color suppression mechanism in D decays. We find no evidence for the W exchange decay. DO -> Phi KO."","abstract_has_math":false,"creators":["Plaetzer, Scott Alan"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Eisenstein, Bob I."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-06-06T17:05:11Z","date_published":"2011-06-06T17:05:11Z","updated_at":"2026-07-22T22:25:24Z","subjects":["new cabibbo suppressed decays","D mesons","Mark III detector SPEAR"],"languages":["en"],"rights":["1985 Scott Alan Plaetzer"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["885776"],"render_values":[{"text":"885776","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25299","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Eisenstein, Bob I."]},{"key":"dc:creator","label":"Author","values":["Plaetzer, Scott Alan"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-06-06T17:05:11Z","10000-01-01","1985"]},{"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":["new cabibbo suppressed decays","D mesons","Mark III detector SPEAR"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1985 Scott Alan Plaetzer"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["885776","http://hdl.handle.net/2142/25299"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["\"We have searched for new decay modes of the charmed D meson using the Mark III detector at the SPEAR e+e-storage ring. Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the \"\"color suppressed\"\" decay D+ -> Phi pi+. We observe a cross section times branching ratio for the decay D+ -> K*Obar K+ to be .011 +-.006 +-.001 nb. Our results indicate a failure of the color suppression mechanism in D decays. We find no evidence for the W exchange decay. DO -> Phi KO.\"","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-06T17:05:11Z No. of bitstreams: 1 1985_plaetzer.pdf: 4298898 bytes, checksum: 83ba8aee505c2f2984b2f1a2ab91dbba (MD5)","Made available in DSpace on 2011-06-06T17:05:11Z (GMT). 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Observations of four new decay modes are presented along with upper limits for three others We have measured a cross section times branching ratio of .035 +-.008 +-.004 nb for the \"\"color suppressed\"\" decay D+ -> Phi pi+. We observe a cross section times branching ratio for the decay D+ -> K*Obar K+ to be .011 +-.006 +-.001 nb. Our results indicate a failure of the color suppression mechanism in D decays. We find no evidence for the W exchange decay. DO -> Phi KO.\"","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-06T17:05:11Z No. of bitstreams: 1 1985_plaetzer.pdf: 4298898 bytes, checksum: 83ba8aee505c2f2984b2f1a2ab91dbba (MD5)","Made available in DSpace on 2011-06-06T17:05:11Z (GMT). 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