{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/20424"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/20424","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Measurement of cross section times branching ratio for W boson + photon and Z boson + photon and search for anomalous W boson-photon and Z boson-photon couplings at 1.8 TeV","abstract":"Measurements of the production cross section times branching ratio for $W + \\gamma$ and $Z + \\gamma$ processes, where the W decays into a muon and neutrino and the Z decays into a muon pair, have been made from the analysis of 18.6 $\\pm$ 0.7 $pb\\sp{-1}$ of high-$P\\sb{T}$ muon data from proton-antiproton (pp) collisions. The data were collected with the Collider Detector at Fermilab (CDF) during the 1992-93 run. In a search for central photons ($\\vert\\eta\\vert\\ <$ 1.1) with transverse energy above 7 GeV and angular separation from the muon by at least $\\Delta R$ = 0.7 we find 7 $W\\gamma$ and 4 $Z\\gamma$ candidates. This translates into cross section times branching ratios of 9.0 $\\pm$ 6.4 pb for the $W\\gamma$ process and 6.6 $\\pm$ 3.4 pb for the $Z\\gamma$ process. Separate measurements were made for photon $E\\sb{T}$ values above 11 GeV and 15 GeV. The cross section times branching ratio results were used to calculate a series of cross section ratios. An analysis designed to search for anomalous couplings between the gauge bosons was also carried out using these results. Assuming only one anomalous coupling to be non-zero at a time, the 95% CL limits on $W\\gamma$ anomalous couplings are, $-3.7 < \\Delta\\kappa\\ < 3.7, -1.2 < \\lambda < 1.2, -3.8 < \\tilde\\kappa < 3.8$ and $-1.2 < \\tilde\\lambda <$ 1.2. For $ZZ\\gamma$ anomalous couplings the experimental limits are measured to be, at the 95% CL, $-4.6 < h\\sbsp{30}{Z}(h\\sbsp{10}{Z}) <$ 4.6 and $-1.1 < h\\sbsp{40}{Z}(h\\sbsp{20}{Z}) <$ 1.1. For $Z\\gamma\\gamma$ anomalous couplings the experimental limits are measured to be, at, the 95% CL, $-4.9 < h\\sbsp{30}{\\gamma}(h\\sbsp{10}{\\gamma}) <$ 4.9 and $-1.2 < h\\sbsp{40}{\\gamma}(h\\sbsp{20}{\\gamma}) <$ 1.2. Limits are placed on electromagnetic multipole moments for both the W and Z bosons using the measured limits of the anomalous couplings, and are presented in this thesis. All of the measurements presented in this thesis are consistent with Standard Model expectations.","abstract_html":"Measurements of the production cross section times branching ratio for <span class=\"etd-inline-math\">W + &gamma;</span> and <span class=\"etd-inline-math\">Z + &gamma;</span> processes, where the W decays into a muon and neutrino and the Z decays into a muon pair, have been made from the analysis of 18.6 $\\pm$ 0.7 $pb\\sp{-1}$ of high-$P\\sb{T}$ muon data from proton-antiproton (pp) collisions. The data were collected with the Collider Detector at Fermilab (CDF) during the 1992-93 run. In a search for central photons (<span class=\"etd-inline-math\">\\vert\\eta\\vert &lt;</span> 1.1) with transverse energy above 7 GeV and angular separation from the muon by at least $\\Delta R$ = 0.7 we find 7 <span class=\"etd-inline-math\">W&gamma;</span> and 4 <span class=\"etd-inline-math\">Z&gamma;</span> candidates. This translates into cross section times branching ratios of 9.0 $\\pm$ 6.4 pb for the <span class=\"etd-inline-math\">W&gamma;</span> process and 6.6 $\\pm$ 3.4 pb for the <span class=\"etd-inline-math\">Z&gamma;</span> process. Separate measurements were made for photon $E\\sb{T}$ values above 11 GeV and 15 GeV. The cross section times branching ratio results were used to calculate a series of cross section ratios. An analysis designed to search for anomalous couplings between the gauge bosons was also carried out using these results. Assuming only one anomalous coupling to be non-zero at a time, the 95% CL limits on <span class=\"etd-inline-math\">W&gamma;</span> anomalous couplings are, <span class=\"etd-inline-math\">-3.7 &lt; \\Delta\\kappa &lt; 3.7, -1.2 &lt; \\lambda &lt; 1.2, -3.8 &lt; \\tilde\\kappa &lt; 3.8</span> and $-1.2 &lt; \\tilde\\lambda &lt;$ 1.2. For <span class=\"etd-inline-math\">ZZ&gamma;</span> anomalous couplings the experimental limits are measured to be, at the 95% CL, $-4.6 &lt; h\\sbsp{30}{Z}(h\\sbsp{10}{Z}) &lt;$ 4.6 and $-1.1 &lt; h\\sbsp{40}{Z}(h\\sbsp{20}{Z}) &lt;$ 1.1. For <span class=\"etd-inline-math\">Z&gamma;&gamma;</span> anomalous couplings the experimental limits are measured to be, at, the 95% CL, <span class=\"etd-inline-math\">-4.9 &lt; h\\sbsp{30}{&gamma;}(h\\sbsp{10}{&gamma;}) &lt;</span> 4.9 and <span class=\"etd-inline-math\">-1.2 &lt; h\\sbsp{40}{&gamma;}(h\\sbsp{20}{&gamma;}) &lt;</span> 1.2. Limits are placed on electromagnetic multipole moments for both the W and Z bosons using the measured limits of the anomalous couplings, and are presented in this thesis. All of the measurements presented in this thesis are consistent with Standard Model expectations.","abstract_has_math":true,"creators":["Vondracek, Mark Frank"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Liss, Tony M."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-07T12:38:48Z","date_published":"2011-05-07T12:38:48Z","updated_at":"2026-07-22T22:25:15Z","subjects":["Physics, Elementary Particles and High Energy"],"languages":["eng"],"rights":["Copyright 1994 Vondracek, Mark Frank"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9522185","(UMI)AAI9522185"],"render_values":[{"text":"AAI9522185","href":null,"code":true},{"text":"(UMI)AAI9522185","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/20424","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Liss, Tony M."]},{"key":"dc:creator","label":"Author","values":["Vondracek, Mark Frank"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-07T12:38:48Z","10000-01-01","1994"]},{"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"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 1994 Vondracek, Mark Frank"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["AAI9522185","(UMI)AAI9522185","http://hdl.handle.net/2142/20424"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Measurements of the production cross section times branching ratio for $W + \\gamma$ and $Z + \\gamma$ processes, where the W decays into a muon and neutrino and the Z decays into a muon pair, have been made from the analysis of 18.6 $\\pm$ 0.7 $pb\\sp{-1}$ of high-$P\\sb{T}$ muon data from proton-antiproton (pp) collisions. The data were collected with the Collider Detector at Fermilab (CDF) during the 1992-93 run. In a search for central photons ($\\vert\\eta\\vert\\ <$ 1.1) with transverse energy above 7 GeV and angular separation from the muon by at least $\\Delta R$ = 0.7 we find 7 $W\\gamma$ and 4 $Z\\gamma$ candidates. This translates into cross section times branching ratios of 9.0 $\\pm$ 6.4 pb for the $W\\gamma$ process and 6.6 $\\pm$ 3.4 pb for the $Z\\gamma$ process. Separate measurements were made for photon $E\\sb{T}$ values above 11 GeV and 15 GeV. The cross section times branching ratio results were used to calculate a series of cross section ratios. An analysis designed to search for anomalous couplings between the gauge bosons was also carried out using these results. Assuming only one anomalous coupling to be non-zero at a time, the 95% CL limits on $W\\gamma$ anomalous couplings are, $-3.7 < \\Delta\\kappa\\ < 3.7, -1.2 < \\lambda < 1.2, -3.8 < \\tilde\\kappa < 3.8$ and $-1.2 < \\tilde\\lambda <$ 1.2. For $ZZ\\gamma$ anomalous couplings the experimental limits are measured to be, at the 95% CL, $-4.6 < h\\sbsp{30}{Z}(h\\sbsp{10}{Z}) <$ 4.6 and $-1.1 < h\\sbsp{40}{Z}(h\\sbsp{20}{Z}) <$ 1.1. For $Z\\gamma\\gamma$ anomalous couplings the experimental limits are measured to be, at, the 95% CL, $-4.9 < h\\sbsp{30}{\\gamma}(h\\sbsp{10}{\\gamma}) <$ 4.9 and $-1.2 < h\\sbsp{40}{\\gamma}(h\\sbsp{20}{\\gamma}) <$ 1.2. Limits are placed on electromagnetic multipole moments for both the W and Z bosons using the measured limits of the anomalous couplings, and are presented in this thesis. All of the measurements presented in this thesis are consistent with Standard Model expectations.","Made available in DSpace on 2011-05-07T12:38:48Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9522185.pdf: 6140720 bytes, checksum: 39b15036f68168b9eb7689dfccb176d5 (MD5) Previous issue date: 1994","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:43:48Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:19:12-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"]},{"key":"dc:title","label":"Title","values":["Measurement of cross section times branching ratio for W boson + photon and Z boson + photon and search for anomalous W boson-photon and Z boson-photon couplings at 1.8 TeV"]}]}],"canonical_facts":{"dc:contributor":["Liss, Tony M."],"dc:creator":["Vondracek, Mark Frank"],"dc:date":["2011-05-07T12:38:48Z","10000-01-01","1994"],"dc:description":["Measurements of the production cross section times branching ratio for $W + \\gamma$ and $Z + \\gamma$ processes, where the W decays into a muon and neutrino and the Z decays into a muon pair, have been made from the analysis of 18.6 $\\pm$ 0.7 $pb\\sp{-1}$ of high-$P\\sb{T}$ muon data from proton-antiproton (pp) collisions. The data were collected with the Collider Detector at Fermilab (CDF) during the 1992-93 run. In a search for central photons ($\\vert\\eta\\vert\\ <$ 1.1) with transverse energy above 7 GeV and angular separation from the muon by at least $\\Delta R$ = 0.7 we find 7 $W\\gamma$ and 4 $Z\\gamma$ candidates. This translates into cross section times branching ratios of 9.0 $\\pm$ 6.4 pb for the $W\\gamma$ process and 6.6 $\\pm$ 3.4 pb for the $Z\\gamma$ process. Separate measurements were made for photon $E\\sb{T}$ values above 11 GeV and 15 GeV. The cross section times branching ratio results were used to calculate a series of cross section ratios. An analysis designed to search for anomalous couplings between the gauge bosons was also carried out using these results. Assuming only one anomalous coupling to be non-zero at a time, the 95% CL limits on $W\\gamma$ anomalous couplings are, $-3.7 < \\Delta\\kappa\\ < 3.7, -1.2 < \\lambda < 1.2, -3.8 < \\tilde\\kappa < 3.8$ and $-1.2 < \\tilde\\lambda <$ 1.2. For $ZZ\\gamma$ anomalous couplings the experimental limits are measured to be, at the 95% CL, $-4.6 < h\\sbsp{30}{Z}(h\\sbsp{10}{Z}) <$ 4.6 and $-1.1 < h\\sbsp{40}{Z}(h\\sbsp{20}{Z}) <$ 1.1. For $Z\\gamma\\gamma$ anomalous couplings the experimental limits are measured to be, at, the 95% CL, $-4.9 < h\\sbsp{30}{\\gamma}(h\\sbsp{10}{\\gamma}) <$ 4.9 and $-1.2 < h\\sbsp{40}{\\gamma}(h\\sbsp{20}{\\gamma}) <$ 1.2. Limits are placed on electromagnetic multipole moments for both the W and Z bosons using the measured limits of the anomalous couplings, and are presented in this thesis. All of the measurements presented in this thesis are consistent with Standard Model expectations.","Made available in DSpace on 2011-05-07T12:38:48Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9522185.pdf: 6140720 bytes, checksum: 39b15036f68168b9eb7689dfccb176d5 (MD5) Previous issue date: 1994","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Howard Ding (hding2@illinois.edu) on 2011-05-07T14:43:48Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:19:12-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: ETDs are only available to UIUC Users without author permission","ETDs are only available to UIUC Users without author permission","U of I Only"],"dc:identifier":["AAI9522185","(UMI)AAI9522185","http://hdl.handle.net/2142/20424"],"dc:language":["eng"],"dc:rights":["Copyright 1994 Vondracek, Mark Frank"],"dc:subject":["Physics, Elementary Particles and High Energy"],"dc:title":["Measurement of cross section times branching ratio for W boson + photon and Z boson + photon and search for anomalous W boson-photon and Z boson-photon couplings at 1.8 TeV"],"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":"2026-07-22T22:25:15Z"}