{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/80658"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/80658","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A Scan of the Cross Section of the Reaction (Antiproton + Proton Going to Antilambda + Sigma-0 and Charge Conjugate) From Threshold to 2.5 MeV Excess Energy","abstract":"The total cross section of the reaction pp→LS0+c. c. at ten momentum values within 2.5 MeV of threshold was measured using the Low Energy Antiproton Ring (LEAR) at CERN. The cross section was normalized against the similar reaction pp→LL and a novel background estimation using below-threshold data was performed. Because of these techniques, the results are insensitive to the detector acceptance, and are essentially free of systematic errors, provided they are kept as a ratio to the cross section of pp→LL at the same incident antiproton momentum. The differential cross section could not be measured reliably, due to the proximity to threshold.","abstract_html":"The total cross section of the reaction pp→LS0+c. c. at ten momentum values within 2.5 MeV of threshold was measured using the Low Energy Antiproton Ring (LEAR) at CERN. The cross section was normalized against the similar reaction pp→LL and a novel background estimation using below-threshold data was performed. Because of these techniques, the results are insensitive to the detector acceptance, and are essentially free of systematic errors, provided they are kept as a ratio to the cross section of pp→LL at the same incident antiproton momentum. The differential cross section could not be measured reliably, due to the proximity to threshold.","abstract_has_math":false,"creators":["Bunker, Brian Douglas"],"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":"2015-09-25T20:03:28Z","date_published":"2015-09-25T20:03:28Z","updated_at":"2026-07-22T22:26:14Z","subjects":["Physics, Nuclear"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI9912203"],"render_values":[{"text":"(MiAaPQ)AAI9912203","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/80658","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":["Bunker, Brian Douglas"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-25T20:03:28Z","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, Nuclear"]}]},{"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/2142/80658","(MiAaPQ)AAI9912203"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The total cross section of the reaction pp→LS0+c. c. at ten momentum values within 2.5 MeV of threshold was measured using the Low Energy Antiproton Ring (LEAR) at CERN. The cross section was normalized against the similar reaction pp→LL and a novel background estimation using below-threshold data was performed. Because of these techniques, the results are insensitive to the detector acceptance, and are essentially free of systematic errors, provided they are kept as a ratio to the cross section of pp→LL at the same incident antiproton momentum. The differential cross section could not be measured reliably, due to the proximity to threshold.","Made available in DSpace on 2015-09-25T20:03:28Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9912203.pdf: 7958894 bytes, checksum: 9c4d5d1c5e1c62c857c678159f550ca1 (MD5) Previous issue date: 1998","Embargo set by: Seth Robbins for item 81940 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","173 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998."]},{"key":"dc:title","label":"Title","values":["A Scan of the Cross Section of the Reaction (Antiproton + Proton Going to Antilambda + Sigma-0 and Charge Conjugate) From Threshold to 2.5 MeV Excess Energy"]}]}],"canonical_facts":{"dc:contributor":["Hertzog, David W."],"dc:creator":["Bunker, Brian Douglas"],"dc:date":["2015-09-25T20:03:28Z","10000-01-01","1998"],"dc:description":["The total cross section of the reaction pp→LS0+c. c. at ten momentum values within 2.5 MeV of threshold was measured using the Low Energy Antiproton Ring (LEAR) at CERN. The cross section was normalized against the similar reaction pp→LL and a novel background estimation using below-threshold data was performed. Because of these techniques, the results are insensitive to the detector acceptance, and are essentially free of systematic errors, provided they are kept as a ratio to the cross section of pp→LL at the same incident antiproton momentum. The differential cross section could not be measured reliably, due to the proximity to threshold.","Made available in DSpace on 2015-09-25T20:03:28Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 9912203.pdf: 7958894 bytes, checksum: 9c4d5d1c5e1c62c857c678159f550ca1 (MD5) Previous issue date: 1998","Embargo set by: Seth Robbins for item 81940 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","173 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1998."],"dc:identifier":["http://hdl.handle.net/2142/80658","(MiAaPQ)AAI9912203"],"dc:language":["eng"],"dc:subject":["Physics, Nuclear"],"dc:title":["A Scan of the Cross Section of the Reaction (Antiproton + Proton Going to Antilambda + Sigma-0 and Charge Conjugate) From Threshold to 2.5 MeV Excess Energy"],"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"}