{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/80662"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/80662","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A Measurement of the Reactions (Bar)p/p Going to Eta/eta, (Bar)p/p Going to Pi(0)/eta and (Bar)p/p Going to Pi(0)/pi(0) From 1.188 GeV/c to 1.445 GeV/c","abstract":"The reactions p&d1;p&rarr;hh&rarr;4g ,p&d1;p&rarr;p 0h&rarr;4g and p&d1;p&rarr;p0p 0&rarr;4g were investigated at incident antiproton momenta between 1.188 and 1.445 GeV/c using the Low Energy Antiproton Ring (LEAR) at CERN. This investigation was part of an overall program searching for exotic resonances in antiproton-proton annihilations, focusing on the region near the xi(2220). Yields for the reactions p&d1;p&rarr;hh&rarr;4g ,p&d1;p&rarr;p 0h&rarr;4g and p&d1;p&rarr;p0p 0&rarr;4g are presented as a function of center-of-mass energy over this region. Upper limits are set for the likelihood of the production of the xi(2220) in these channels based on its non-observation in the data presented.","abstract_html":"The reactions p&amp;d1;p&amp;rarr;hh&amp;rarr;4g ,p&amp;d1;p&amp;rarr;p 0h&amp;rarr;4g and p&amp;d1;p&amp;rarr;p0p 0&amp;rarr;4g were investigated at incident antiproton momenta between 1.188 and 1.445 GeV/c using the Low Energy Antiproton Ring (LEAR) at CERN. This investigation was part of an overall program searching for exotic resonances in antiproton-proton annihilations, focusing on the region near the xi(2220). Yields for the reactions p&amp;d1;p&amp;rarr;hh&amp;rarr;4g ,p&amp;d1;p&amp;rarr;p 0h&amp;rarr;4g and p&amp;d1;p&amp;rarr;p0p 0&amp;rarr;4g are presented as a function of center-of-mass energy over this region. Upper limits are set for the likelihood of the production of the xi(2220) in these channels based on its non-observation in the data presented.","abstract_has_math":false,"creators":["Ritter, Johannes B."],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Hertzog, David W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-25T20:03:30Z","date_published":"2015-09-25T20:03:30Z","updated_at":"2026-07-22T22:26:14Z","subjects":["Physics, Elementary Particles and High Energy"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9912357"],"render_values":[{"text":"(MiAaPQ)AAI9912357","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/80662","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Hertzog, David W."]},{"key":"dc:creator","label":"Author","values":["Ritter, Johannes B."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:03:30Z","10000-01-01","1998"]},{"key":"dc:type","label":"Dc Type","values":["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."]},{"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"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/80662","(MiAaPQ)AAI9912357"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The reactions p&d1;p&rarr;hh&rarr;4g ,p&d1;p&rarr;p 0h&rarr;4g and p&d1;p&rarr;p0p 0&rarr;4g were investigated at incident antiproton momenta between 1.188 and 1.445 GeV/c using the Low Energy Antiproton Ring (LEAR) at CERN. This investigation was part of an overall program searching for exotic resonances in antiproton-proton annihilations, focusing on the region near the xi(2220). Yields for the reactions p&d1;p&rarr;hh&rarr;4g ,p&d1;p&rarr;p 0h&rarr;4g and p&d1;p&rarr;p0p 0&rarr;4g are presented as a function of center-of-mass energy over this region. Upper limits are set for the likelihood of the production of the xi(2220) in these channels based on its non-observation in the data presented.","Made available in DSpace on 2015-09-25T20:03:30Z (GMT). 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This investigation was part of an overall program searching for exotic resonances in antiproton-proton annihilations, focusing on the region near the xi(2220). Yields for the reactions p&d1;p&rarr;hh&rarr;4g ,p&d1;p&rarr;p 0h&rarr;4g and p&d1;p&rarr;p0p 0&rarr;4g are presented as a function of center-of-mass energy over this region. Upper limits are set for the likelihood of the production of the xi(2220) in these channels based on its non-observation in the data presented.","Made available in DSpace on 2015-09-25T20:03:30Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9912357.pdf: 3213180 bytes, checksum: 192e23a2a98920f0d46b1a85f3bb70ff (MD5) Previous issue date: 1998","Embargo set by: Seth Robbins for item 81944 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","125 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998."],"dc:identifier":["http://hdl.handle.net/2142/80662","(MiAaPQ)AAI9912357"],"dc:language":["eng"],"dc:subject":["Physics, Elementary Particles and High Energy"],"dc:title":["A Measurement of the Reactions (Bar)p/p Going to Eta/eta, (Bar)p/p Going to Pi(0)/eta and (Bar)p/p Going to Pi(0)/pi(0) From 1.188 GeV/c to 1.445 GeV/c"],"dc:type":["text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:26:14Z"}