{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/18863"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/18863","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Search for CP violation in D-meson decays","abstract":"Using data from the Mark III detector at the e+e- storage ring at SPEAR, an upper limit of .30 at the 90% confidence level is set on the magnitude of the CP asymmetry Acp for the CP eigenstate no -+ K+ K-. This falls within the preexisting limit of .45 @90% CL set by FNAL experiment E691 using the same decay. The first measurement of Acp is made for two other CP eigenstates, no -+ K2 K2 and no -+ 1r+1r-. An upper limit for the branching ratio for the decay, no -+ K-?r+?r0 ?r0 ?r0 , for which evidence was found in the process of measuring Acp, is set at 12.1%.","abstract_html":"Using data from the Mark III detector at the e+e- storage ring at SPEAR, an upper limit of .30 at the 90% confidence level is set on the magnitude of the CP asymmetry Acp for the CP eigenstate no -+ K+ K-. This falls within the preexisting limit of .45 @90% CL set by FNAL experiment E691 using the same decay. The first measurement of Acp is made for two other CP eigenstates, no -+ K2 K2 and no -+ 1r+1r-. An upper limit for the branching ratio for the decay, no -+ K-?r+?r0 ?r0 ?r0 , for which evidence was found in the process of measuring Acp, is set at 12.1%.","abstract_has_math":false,"creators":["Stewart, Gay Bernadette"],"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":"2011-04-25T14:33:18Z","date_published":"2011-04-25T14:33:18Z","updated_at":"2026-07-22T22:25:11Z","subjects":["CP violation","Mark III","D-meson decays"],"languages":["en"],"rights":["1994 Gay Bernadette Stewart"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["3780578"],"render_values":[{"text":"3780578","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/18863","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":["Stewart, Gay Bernadette"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-04-25T14:33:18Z","10000-01-01","1994-10"]},{"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":["CP violation","Mark III","D-meson decays"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1994 Gay Bernadette Stewart"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["3780578","http://hdl.handle.net/2142/18863"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Using data from the Mark III detector at the e+e- storage ring at SPEAR, an upper limit of .30 at the 90% confidence level is set on the magnitude of the CP asymmetry Acp for the CP eigenstate no -+ K+ K-. This falls within the preexisting limit of .45 @90% CL set by FNAL experiment E691 using the same decay. The first measurement of Acp is made for two other CP eigenstates, no -+ K2 K2 and no -+ 1r+1r-. An upper limit for the branching ratio for the decay, no -+ K-?r+?r0 ?r0 ?r0 , for which evidence was found in the process of measuring Acp, is set at 12.1%.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-04-25T14:33:18Z No. of bitstreams: 1 1994_stewart.pdf: 8516360 bytes, checksum: 8c38ff9588d03207cf141c623aa8fd90 (MD5)","Made available in DSpace on 2011-04-25T14:33:18Z (GMT). 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This falls within the preexisting limit of .45 @90% CL set by FNAL experiment E691 using the same decay. The first measurement of Acp is made for two other CP eigenstates, no -+ K2 K2 and no -+ 1r+1r-. An upper limit for the branching ratio for the decay, no -+ K-?r+?r0 ?r0 ?r0 , for which evidence was found in the process of measuring Acp, is set at 12.1%.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-04-25T14:33:18Z No. of bitstreams: 1 1994_stewart.pdf: 8516360 bytes, checksum: 8c38ff9588d03207cf141c623aa8fd90 (MD5)","Made available in DSpace on 2011-04-25T14:33:18Z (GMT). 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