{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25558"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25558","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A study of Zweig's rule using phi mesons in a broad band neutral beam","abstract":"A study of Zweig's rule using phi mesons in a high energy photon beam has been performed. Measurement of the ratio sigma (gamma A -> phi pi pi A) / sigma (gamma A -> omega pi pi A) = 0.10 ± 0.02 is taken as evidence that there is not as strong suppression as could be expected. Other ratios show strange particle production down from non-strange particle production by a factor of twelve. Decays involving phi mesons are studied, and the only candidate seen is a four sigma effect in the mode two phis with a mass 2.15 Gev. F meson, charm pseudo-scalar meson and exotic vector mesons which might decay into phis are not seen. The phi prime is not seen with an upper limit sigma (gamma A -> 'A) B (phi' -> K+K-pi+pi-) < 6 nb per nucleon.","abstract_html":"A study of Zweig&#x27;s rule using phi mesons in a high energy photon beam has been performed. Measurement of the ratio sigma (gamma A -&gt; phi pi pi A) / sigma (gamma A -&gt; omega pi pi A) = 0.10 ± 0.02 is taken as evidence that there is not as strong suppression as could be expected. Other ratios show strange particle production down from non-strange particle production by a factor of twelve. Decays involving phi mesons are studied, and the only candidate seen is a four sigma effect in the mode two phis with a mass 2.15 Gev. F meson, charm pseudo-scalar meson and exotic vector mesons which might decay into phis are not seen. The phi prime is not seen with an upper limit sigma (gamma A -&gt; &#x27;A) B (phi&#x27; -&gt; K+K-pi+pi-) &lt; 6 nb per nucleon.","abstract_has_math":false,"creators":["Goodman, Maury Charles"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Wattenberg, A."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-06-28T18:36:15Z","date_published":"2011-06-28T18:36:15Z","updated_at":"2026-07-22T22:25:24Z","subjects":["Zwig's rule","phi mesons","broad band neutral beam","high energy photon beam"],"languages":["en"],"rights":["1979 Maury Charles Goodman"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["397105"],"render_values":[{"text":"397105","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25558","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Wattenberg, A."]},{"key":"dc:creator","label":"Author","values":["Goodman, Maury Charles"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-06-28T18:36:15Z","10000-01-01","1979"]},{"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":["Zwig's rule","phi mesons","broad band neutral beam","high energy photon beam"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1979 Maury Charles Goodman"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["397105","http://hdl.handle.net/2142/25558"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["A study of Zweig's rule using phi mesons in a high energy photon beam has been performed. Measurement of the ratio sigma (gamma A -> phi pi pi A) / sigma (gamma A -> omega pi pi A) = 0.10 ± 0.02 is taken as evidence that there is not as strong suppression as could be expected. Other ratios show strange particle production down from non-strange particle production by a factor of twelve. Decays involving phi mesons are studied, and the only candidate seen is a four sigma effect in the mode two phis with a mass 2.15 Gev. F meson, charm pseudo-scalar meson and exotic vector mesons which might decay into phis are not seen. The phi prime is not seen with an upper limit sigma (gamma A -> 'A) B (phi' -> K+K-pi+pi-) < 6 nb per nucleon.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-28T18:36:15Z No. of bitstreams: 1 1979_goodman.pdf: 3652784 bytes, checksum: c88fc646074023e4c6980a97ee8b1bd8 (MD5)","Made available in DSpace on 2011-06-28T18:36:15Z (GMT). No. of bitstreams: 1 1979_goodman.pdf: 3652784 bytes, checksum: c88fc646074023e4c6980a97ee8b1bd8 (MD5) Previous issue date: 1979","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-06-28T18:36:15Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:28-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["A study of Zweig's rule using phi mesons in a broad band neutral beam"]}]}],"canonical_facts":{"dc:contributor":["Wattenberg, A."],"dc:creator":["Goodman, Maury Charles"],"dc:date":["2011-06-28T18:36:15Z","10000-01-01","1979"],"dc:description":["A study of Zweig's rule using phi mesons in a high energy photon beam has been performed. Measurement of the ratio sigma (gamma A -> phi pi pi A) / sigma (gamma A -> omega pi pi A) = 0.10 ± 0.02 is taken as evidence that there is not as strong suppression as could be expected. Other ratios show strange particle production down from non-strange particle production by a factor of twelve. Decays involving phi mesons are studied, and the only candidate seen is a four sigma effect in the mode two phis with a mass 2.15 Gev. F meson, charm pseudo-scalar meson and exotic vector mesons which might decay into phis are not seen. The phi prime is not seen with an upper limit sigma (gamma A -> 'A) B (phi' -> K+K-pi+pi-) < 6 nb per nucleon.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-28T18:36:15Z No. of bitstreams: 1 1979_goodman.pdf: 3652784 bytes, checksum: c88fc646074023e4c6980a97ee8b1bd8 (MD5)","Made available in DSpace on 2011-06-28T18:36:15Z (GMT). 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