{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/77420"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/77420","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Single Neutral Pion Production in Charged Current and Neutral Current Neutrino Interactions","abstract":"An experiment run in the $\\nu\\sb\\mu$ line of the Alternating Gradient Synchrotron at the Brookhaven National Laboratory is described, examining production of single $\\pi\\sp0$ final states in charged-current ($\\nu\\sb\\mu n \\to \\mu\\sp{-}p\\pi\\sp0$) and neutral-current ($\\nu\\sb\\mu p \\to \\nu\\sb\\mu p\\pi\\sp0$ and $\\nu\\sb\\mu n \\to \\nu\\sb\\mu n\\pi\\sp0$) reactions, observed in a $5{1\\over2}$ ton (fiducial volume) detector consisting of aluminum spark chamber modules and plastic scintillation counters. The data sample contains approximately 470,000 beam pulses. The analysis selected for two-shower final states; the $\\gamma\\gamma$ and $p\\gamma\\gamma$ mass distributions are shown. The ratio of neutral- to charged-current single $\\pi\\sp0$ production is examined; and after corrections for efficiency, misidentification, and contamination from higher technology states are made, a value of R$\\sp\\prime$ = ${\\sigma(\\nu\\sb\\mu\\ T \\to \\nu\\sb\\mu\\ T\\sp\\prime\\ \\pi\\sp0)}\\over{2\\sigma(\\nu\\sb\\mu\\ T \\to \\mu\\sp{-} T\\sp{\\prime\\prime} \\pi\\sp0)}$ = 0.248 $\\pm$ 0.085 (where T is the target nucleus (for this experiment, aluminum) and T$\\sp\\prime$ and T$\\sp{\\prime\\prime}$ are final target states), is obtained. The value of this ratio can be related to the Weinberg weak-mixing angle $\\theta\\sb{w}$, yielding a value of sin$\\sp2\\theta\\sb{w}$ = 0.256 $\\pm$ 0.156.","abstract_html":"An experiment run in the <span class=\"etd-inline-math\">\\nu\\sb&mu;</span> line of the Alternating Gradient Synchrotron at the Brookhaven National Laboratory is described, examining production of single <span class=\"etd-inline-math\">&pi;\\sp0</span> final states in charged-current (<span class=\"etd-inline-math\">\\nu\\sb&mu; n \\to &mu;\\sp{-}p&pi;\\sp0</span>) and neutral-current (<span class=\"etd-inline-math\">\\nu\\sb&mu; p \\to \\nu\\sb&mu; p&pi;\\sp0</span> and <span class=\"etd-inline-math\">\\nu\\sb&mu; n \\to \\nu\\sb&mu; n&pi;\\sp0</span>) reactions, observed in a $5{1\\over2}$ ton (fiducial volume) detector consisting of aluminum spark chamber modules and plastic scintillation counters. The data sample contains approximately 470,000 beam pulses. The analysis selected for two-shower final states; the <span class=\"etd-inline-math\">&gamma;&gamma;</span> and <span class=\"etd-inline-math\">p&gamma;&gamma;</span> mass distributions are shown. The ratio of neutral- to charged-current single <span class=\"etd-inline-math\">&pi;\\sp0</span> production is examined; and after corrections for efficiency, misidentification, and contamination from higher technology states are made, a value of R$\\sp\\prime$ = <span class=\"etd-inline-math\">{&sigma;(\\nu\\sb&mu; T \\to \\nu\\sb&mu; T\\sp\\prime &pi;\\sp0)}\\over{2&sigma;(\\nu\\sb&mu; T \\to &mu;\\sp{-} T\\sp{\\prime\\prime} &pi;\\sp0)}</span> = 0.248 $\\pm$ 0.085 (where T is the target nucleus (for this experiment, aluminum) and T$\\sp\\prime$ and T$\\sp{\\prime\\prime}$ are final target states), is obtained. The value of this ratio can be related to the Weinberg weak-mixing angle <span class=\"etd-inline-math\">&theta;\\sb{w}</span>, yielding a value of sin<span class=\"etd-inline-math\">\\sp2&theta;\\sb{w}</span> = 0.256 $\\pm$ 0.156.","abstract_has_math":true,"creators":["Nienaber, Paul Joseph"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-05-13T15:42:02Z","date_published":"2015-05-13T15:42:02Z","updated_at":"2026-07-22T22:26:10Z","subjects":["Physics, Elementary Particles and High Energy"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(UMI)AAI8823214"],"render_values":[{"text":"(UMI)AAI8823214","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/77420","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Nienaber, Paul Joseph"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-05-13T15:42:02Z","10000-01-01","1988"]},{"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"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/77420","(UMI)AAI8823214"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["An experiment run in the $\\nu\\sb\\mu$ line of the Alternating Gradient Synchrotron at the Brookhaven National Laboratory is described, examining production of single $\\pi\\sp0$ final states in charged-current ($\\nu\\sb\\mu n \\to \\mu\\sp{-}p\\pi\\sp0$) and neutral-current ($\\nu\\sb\\mu p \\to \\nu\\sb\\mu p\\pi\\sp0$ and $\\nu\\sb\\mu n \\to \\nu\\sb\\mu n\\pi\\sp0$) reactions, observed in a $5{1\\over2}$ ton (fiducial volume) detector consisting of aluminum spark chamber modules and plastic scintillation counters. The data sample contains approximately 470,000 beam pulses. The analysis selected for two-shower final states; the $\\gamma\\gamma$ and $p\\gamma\\gamma$ mass distributions are shown. The ratio of neutral- to charged-current single $\\pi\\sp0$ production is examined; and after corrections for efficiency, misidentification, and contamination from higher technology states are made, a value of R$\\sp\\prime$ = ${\\sigma(\\nu\\sb\\mu\\ T \\to \\nu\\sb\\mu\\ T\\sp\\prime\\ \\pi\\sp0)}\\over{2\\sigma(\\nu\\sb\\mu\\ T \\to \\mu\\sp{-} T\\sp{\\prime\\prime} \\pi\\sp0)}$ = 0.248 $\\pm$ 0.085 (where T is the target nucleus (for this experiment, aluminum) and T$\\sp\\prime$ and T$\\sp{\\prime\\prime}$ are final target states), is obtained. The value of this ratio can be related to the Weinberg weak-mixing angle $\\theta\\sb{w}$, yielding a value of sin$\\sp2\\theta\\sb{w}$ = 0.256 $\\pm$ 0.156.","Made available in DSpace on 2015-05-13T15:42:02Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 8823214.PDF: 3238463 bytes, checksum: 99c897478bfaee77ac5401f363d09518 (MD5) Previous issue date: 1988","Embargo set by: Seth Robbins for item 78631 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","102 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1988."]},{"key":"dc:title","label":"Title","values":["Single Neutral Pion Production in Charged Current and Neutral Current Neutrino Interactions"]}]}],"canonical_facts":{"dc:creator":["Nienaber, Paul Joseph"],"dc:date":["2015-05-13T15:42:02Z","10000-01-01","1988"],"dc:description":["An experiment run in the $\\nu\\sb\\mu$ line of the Alternating Gradient Synchrotron at the Brookhaven National Laboratory is described, examining production of single $\\pi\\sp0$ final states in charged-current ($\\nu\\sb\\mu n \\to \\mu\\sp{-}p\\pi\\sp0$) and neutral-current ($\\nu\\sb\\mu p \\to \\nu\\sb\\mu p\\pi\\sp0$ and $\\nu\\sb\\mu n \\to \\nu\\sb\\mu n\\pi\\sp0$) reactions, observed in a $5{1\\over2}$ ton (fiducial volume) detector consisting of aluminum spark chamber modules and plastic scintillation counters. The data sample contains approximately 470,000 beam pulses. The analysis selected for two-shower final states; the $\\gamma\\gamma$ and $p\\gamma\\gamma$ mass distributions are shown. The ratio of neutral- to charged-current single $\\pi\\sp0$ production is examined; and after corrections for efficiency, misidentification, and contamination from higher technology states are made, a value of R$\\sp\\prime$ = ${\\sigma(\\nu\\sb\\mu\\ T \\to \\nu\\sb\\mu\\ T\\sp\\prime\\ \\pi\\sp0)}\\over{2\\sigma(\\nu\\sb\\mu\\ T \\to \\mu\\sp{-} T\\sp{\\prime\\prime} \\pi\\sp0)}$ = 0.248 $\\pm$ 0.085 (where T is the target nucleus (for this experiment, aluminum) and T$\\sp\\prime$ and T$\\sp{\\prime\\prime}$ are final target states), is obtained. The value of this ratio can be related to the Weinberg weak-mixing angle $\\theta\\sb{w}$, yielding a value of sin$\\sp2\\theta\\sb{w}$ = 0.256 $\\pm$ 0.156.","Made available in DSpace on 2015-05-13T15:42:02Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 8823214.PDF: 3238463 bytes, checksum: 99c897478bfaee77ac5401f363d09518 (MD5) Previous issue date: 1988","Embargo set by: Seth Robbins for item 78631 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","102 p.","Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1988."],"dc:identifier":["http://hdl.handle.net/2142/77420","(UMI)AAI8823214"],"dc:language":["eng"],"dc:subject":["Physics, Elementary Particles and High Energy"],"dc:title":["Single Neutral Pion Production in Charged Current and Neutral Current Neutrino Interactions"],"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":"2026-07-22T22:26:10Z"}