{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25730"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25730","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"The reactions K-p -> Sigma±pi±, Sigma±pi±pi+pi-, and Sigma±pi±K+K- at 4.1 GeV/c and 5.5 GeV/c","abstract":"The data presented and discussed in this report were obtained from K-p interactions at 4.1 GeV/c and 5.5 GeV/c in the MURA thirty-inch hydrogen bubble chamber. K track lengths equivalent to 0.95 IJ.b per event and 0.27 IJb per event have been analyzed at 4.1 GeV/c and 5.5 GeV/c, respectively. Differential cross sections are given for the ~rr+ final states, and the results obtained in this experiment agree well with extrapolated results from lower energies. The data for Sigma+pi- is interpreted in terms of the Regge pole model. A search for the existence of hyperorin resonances in the mass region above 1900 MeV/c2 is made in the Sigma±pi±K+K- data, but no evidence for such resonances is found. Consistent with results from lower energies, this reaction appears to be dominated by quasi-,three-body processes in which either the Y * (1405), Y * (1520), or p(770) is produced. Cross sections and production angular distributions for the various resonance productions are given. Production of Y (1405), Y (1520), and ¢(1020) are observed in the Sigma±pi±K+K- data. Cross se,ctions and production angular distributions are given for the observed resonant processes. A measurement of the mass and width of the theta(1020) yields a mass of 1020.8 + 1. 0 MeV // and a width of 1. 7+1.8 -1.3 MeV/c2.","abstract_html":"The data presented and discussed in this report were obtained from K-p interactions at 4.1 GeV/c and 5.5 GeV/c in the MURA thirty-inch hydrogen bubble chamber. K track lengths equivalent to 0.95 IJ.b per event and 0.27 IJb per event have been analyzed at 4.1 GeV/c and 5.5 GeV/c, respectively. Differential cross sections are given for the ~rr+ final states, and the results obtained in this experiment agree well with extrapolated results from lower energies. The data for Sigma+pi- is interpreted in terms of the Regge pole model. A search for the existence of hyperorin resonances in the mass region above 1900 MeV/c2 is made in the Sigma±pi±K+K- data, but no evidence for such resonances is found. Consistent with results from lower energies, this reaction appears to be dominated by quasi-,three-body processes in which either the Y * (1405), Y * (1520), or p(770) is produced. Cross sections and production angular distributions for the various resonance productions are given. Production of Y (1405), Y (1520), and ¢(1020) are observed in the Sigma±pi±K+K- data. Cross se,ctions and production angular distributions are given for the observed resonant processes. A measurement of the mass and width of the theta(1020) yields a mass of 1020.8 + 1. 0 MeV // and a width of 1. 7+1.8 -1.3 MeV/c2.","abstract_has_math":false,"creators":["Loos, James Stavert"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Kruse, U.E."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-07-08T18:11:04Z","date_published":"2011-07-08T18:11:04Z","updated_at":"2026-07-22T22:25:26Z","subjects":["hydrogen bubble chamber","differential cross sections","quasi-three-body processes"],"languages":["en"],"rights":["1968 James Stavert Loos"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["6077071"],"render_values":[{"text":"6077071","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25730","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Kruse, U.E."]},{"key":"dc:creator","label":"Author","values":["Loos, James Stavert"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-07-08T18:11:04Z","10000-01-01","1968"]},{"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":["hydrogen bubble chamber","differential cross sections","quasi-three-body processes"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1968 James Stavert Loos"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["6077071","http://hdl.handle.net/2142/25730"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The data presented and discussed in this report were obtained from K-p interactions at 4.1 GeV/c and 5.5 GeV/c in the MURA thirty-inch hydrogen bubble chamber. K track lengths equivalent to 0.95 IJ.b per event and 0.27 IJb per event have been analyzed at 4.1 GeV/c and 5.5 GeV/c, respectively. Differential cross sections are given for the ~rr+ final states, and the results obtained in this experiment agree well with extrapolated results from lower energies. The data for Sigma+pi- is interpreted in terms of the Regge pole model. A search for the existence of hyperorin resonances in the mass region above 1900 MeV/c2 is made in the Sigma±pi±K+K- data, but no evidence for such resonances is found. Consistent with results from lower energies, this reaction appears to be dominated by quasi-,three-body processes in which either the Y * (1405), Y * (1520), or p(770) is produced. Cross sections and production angular distributions for the various resonance productions are given. Production of Y (1405), Y (1520), and ¢(1020) are observed in the Sigma±pi±K+K- data. Cross se,ctions and production angular distributions are given for the observed resonant processes. A measurement of the mass and width of the theta(1020) yields a mass of 1020.8 + 1. 0 MeV // and a width of 1. 7+1.8 -1.3 MeV/c2.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T18:11:04Z No. of bitstreams: 1 1968_loos.pdf: 5464578 bytes, checksum: e4b4b28ff4afd62a05179c71df43e54f (MD5)","Made available in DSpace on 2011-07-08T18:11:04Z (GMT). No. of bitstreams: 1 1968_loos.pdf: 5464578 bytes, checksum: e4b4b28ff4afd62a05179c71df43e54f (MD5) Previous issue date: 1968","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T18:11:04Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:52-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["The reactions K-p -> Sigma±pi±, Sigma±pi±pi+pi-, and Sigma±pi±K+K- at 4.1 GeV/c and 5.5 GeV/c"]}]}],"canonical_facts":{"dc:contributor":["Kruse, U.E."],"dc:creator":["Loos, James Stavert"],"dc:date":["2011-07-08T18:11:04Z","10000-01-01","1968"],"dc:description":["The data presented and discussed in this report were obtained from K-p interactions at 4.1 GeV/c and 5.5 GeV/c in the MURA thirty-inch hydrogen bubble chamber. K track lengths equivalent to 0.95 IJ.b per event and 0.27 IJb per event have been analyzed at 4.1 GeV/c and 5.5 GeV/c, respectively. Differential cross sections are given for the ~rr+ final states, and the results obtained in this experiment agree well with extrapolated results from lower energies. The data for Sigma+pi- is interpreted in terms of the Regge pole model. A search for the existence of hyperorin resonances in the mass region above 1900 MeV/c2 is made in the Sigma±pi±K+K- data, but no evidence for such resonances is found. Consistent with results from lower energies, this reaction appears to be dominated by quasi-,three-body processes in which either the Y * (1405), Y * (1520), or p(770) is produced. Cross sections and production angular distributions for the various resonance productions are given. Production of Y (1405), Y (1520), and ¢(1020) are observed in the Sigma±pi±K+K- data. Cross se,ctions and production angular distributions are given for the observed resonant processes. A measurement of the mass and width of the theta(1020) yields a mass of 1020.8 + 1. 0 MeV // and a width of 1. 7+1.8 -1.3 MeV/c2.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T18:11:04Z No. of bitstreams: 1 1968_loos.pdf: 5464578 bytes, checksum: e4b4b28ff4afd62a05179c71df43e54f (MD5)","Made available in DSpace on 2011-07-08T18:11:04Z (GMT). No. of bitstreams: 1 1968_loos.pdf: 5464578 bytes, checksum: e4b4b28ff4afd62a05179c71df43e54f (MD5) Previous issue date: 1968","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-08T18:11:04Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:52-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["6077071","http://hdl.handle.net/2142/25730"],"dc:language":["en"],"dc:rights":["1968 James Stavert Loos"],"dc:subject":["hydrogen bubble chamber","differential cross sections","quasi-three-body processes"],"dc:title":["The reactions K-p -> Sigma±pi±, Sigma±pi±pi+pi-, and Sigma±pi±K+K- at 4.1 GeV/c and 5.5 GeV/c"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:26Z"}