{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25668"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25668","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Backward production in pi minus plus proton goes to neutron pi plus pi minus at 8 GeV/c","abstract":"This thesis reports on events of the form pi- p + npi+pi- where the neutron is produced fast and forward in the laboratory. The data were obtained in an initial exposure of 160,000 pictures in the University of Illinois - Argonne National Laboratory streamer chamber using an 8 GeV/c pion beam. The chamber was triggered by the detection of a fast forward neutral hadron interacting in an array of thick plate optical spark chambers. The dominant feature of the data is quasi two body production of npo and nfo intermediate states. The differential cross section for po production shows evidence for backward peaking near u' = O. The fO decay angular distributions appear to be consistent with the hypothesis of u channel proton exchange as the dominant production mechanism. For both np0 and nf0 production the observed cross sections are on the order of one microbarn.","abstract_html":"This thesis reports on events of the form pi- p + npi+pi- where the neutron is produced fast and forward in the laboratory. The data were obtained in an initial exposure of 160,000 pictures in the University of Illinois - Argonne National Laboratory streamer chamber using an 8 GeV/c pion beam. The chamber was triggered by the detection of a fast forward neutral hadron interacting in an array of thick plate optical spark chambers. The dominant feature of the data is quasi two body production of npo and nfo intermediate states. The differential cross section for po production shows evidence for backward peaking near u' = O. The fO decay angular distributions appear to be consistent with the hypothesis of u channel proton exchange as the dominant production mechanism. For both np0 and nf0 production the observed cross sections are on the order of one microbarn.","abstract_has_math":false,"creators":["Mollet, William Lee","Eisenstein, Bob I."],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-07-05T19:52:06Z","date_published":"2011-07-05T19:52:06Z","updated_at":"2026-07-22T22:25:24Z","subjects":["backward production","neutron","proton","fast forward neutral hadron","quasi two body production"],"languages":["en"],"rights":["1976 William Lee Mollet"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["2959309"],"render_values":[{"text":"2959309","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25668","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Mollet, William Lee","Eisenstein, Bob I."]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-07-05T19:52:06Z","10000-01-01","1976"]},{"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":["backward production","neutron","proton","fast forward neutral hadron","quasi two body production"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1976 William Lee Mollet"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["2959309","http://hdl.handle.net/2142/25668"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["This thesis reports on events of the form pi- p + npi+pi- where the neutron is produced fast and forward in the laboratory. The data were obtained in an initial exposure of 160,000 pictures in the University of Illinois - Argonne National Laboratory streamer chamber using an 8 GeV/c pion beam. The chamber was triggered by the detection of a fast forward neutral hadron interacting in an array of thick plate optical spark chambers. The dominant feature of the data is quasi two body production of npo and nfo intermediate states. The differential cross section for po production shows evidence for backward peaking near u' = O. The fO decay angular distributions appear to be consistent with the hypothesis of u channel proton exchange as the dominant production mechanism. For both np0 and nf0 production the observed cross sections are on the order of one microbarn.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:52:06Z No. of bitstreams: 1 1976_mollet.pdf: 3751014 bytes, checksum: f43b172f6209c384b93444b064195b26 (MD5)","Made available in DSpace on 2011-07-05T19:52:06Z (GMT). No. of bitstreams: 1 1976_mollet.pdf: 3751014 bytes, checksum: f43b172f6209c384b93444b064195b26 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:52:06Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:43-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["Backward production in pi minus plus proton goes to neutron pi plus pi minus at 8 GeV/c"]}]}],"canonical_facts":{"dc:creator":["Mollet, William Lee","Eisenstein, Bob I."],"dc:date":["2011-07-05T19:52:06Z","10000-01-01","1976"],"dc:description":["This thesis reports on events of the form pi- p + npi+pi- where the neutron is produced fast and forward in the laboratory. The data were obtained in an initial exposure of 160,000 pictures in the University of Illinois - Argonne National Laboratory streamer chamber using an 8 GeV/c pion beam. The chamber was triggered by the detection of a fast forward neutral hadron interacting in an array of thick plate optical spark chambers. The dominant feature of the data is quasi two body production of npo and nfo intermediate states. The differential cross section for po production shows evidence for backward peaking near u' = O. The fO decay angular distributions appear to be consistent with the hypothesis of u channel proton exchange as the dominant production mechanism. For both np0 and nf0 production the observed cross sections are on the order of one microbarn.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:52:06Z No. of bitstreams: 1 1976_mollet.pdf: 3751014 bytes, checksum: f43b172f6209c384b93444b064195b26 (MD5)","Made available in DSpace on 2011-07-05T19:52:06Z (GMT). No. of bitstreams: 1 1976_mollet.pdf: 3751014 bytes, checksum: f43b172f6209c384b93444b064195b26 (MD5) Previous issue date: 1976","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-07-05T19:52:06Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:32:43-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["2959309","http://hdl.handle.net/2142/25668"],"dc:language":["en"],"dc:rights":["1976 William Lee Mollet"],"dc:subject":["backward production","neutron","proton","fast forward neutral hadron","quasi two body production"],"dc:title":["Backward production in pi minus plus proton goes to neutron pi plus pi minus at 8 GeV/c"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}