{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/32108"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/32108","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"A measurement of the mean life of the positive muon to a precision of 11 parts per million","abstract":"The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, τμ = 2.197 013 (24) μs, is in excellent agreement with the previous world average. The new world average τμ = 2.197019(21) μs determines the Fermi constant GF = 1.166371(6) × 10^-5 GeV^-2 (5 ppm). Described in this thesis are the motivating concepts, experimental procedure, data analysis, and systematic error analysis for this measurement.","abstract_html":"The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, τμ = 2.197 013 (24) μs, is in excellent agreement with the previous world average. The new world average τμ = 2.197019(21) μs determines the Fermi constant GF = 1.166371(6) × 10^-5 GeV^-2 (5 ppm). Described in this thesis are the motivating concepts, experimental procedure, data analysis, and systematic error analysis for this measurement.","abstract_has_math":false,"creators":["Chitwood, Daniel Brian"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Hertzog, David W."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-07-02T21:15:05Z","date_published":"2012-07-02T21:15:05Z","updated_at":"2026-07-22T22:25:30Z","subjects":["Physics, Nuclear","Physics, Elementary Particles and High Energy","particle physics","muon lifetime","muon mean life"],"languages":["en"],"rights":["© 2007 Daniel Brian Chitwood"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["5654355"],"render_values":[{"text":"5654355","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/32108","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Hertzog, David W."]},{"key":"dc:creator","label":"Author","values":["Chitwood, Daniel Brian"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2012-07-02T21:15:05Z","10000-01-01","2007-10"]},{"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":["Physics, Nuclear","Physics, Elementary Particles and High Energy","particle physics","muon lifetime","muon mean life"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["© 2007 Daniel Brian Chitwood"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["5654355","http://hdl.handle.net/2142/32108"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The mean life of the positive muon has been measured to a precision of 11 ppm using a low-energy, pulsed muon beam stopped in a ferromagnetic target, which was surrounded by a scintillator detector array. The result, τμ = 2.197 013 (24) μs, is in excellent agreement with the previous world average. The new world average τμ = 2.197019(21) μs determines the Fermi constant GF = 1.166371(6) × 10^-5 GeV^-2 (5 ppm). Described in this thesis are the motivating concepts, experimental procedure, data analysis, and systematic error analysis for this measurement.","Submitted by Megan O'Donnell (mnodonn2@illinois.edu) on 2012-07-02T21:15:05Z No. of bitstreams: 1 2007_Chitwood_Daniel.pdf: 4511114 bytes, checksum: 1d0afdd96454a05b2f005cfbc09c80ac (MD5)","Made available in DSpace on 2012-07-02T21:15:05Z (GMT). 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The result, τμ = 2.197 013 (24) μs, is in excellent agreement with the previous world average. The new world average τμ = 2.197019(21) μs determines the Fermi constant GF = 1.166371(6) × 10^-5 GeV^-2 (5 ppm). Described in this thesis are the motivating concepts, experimental procedure, data analysis, and systematic error analysis for this measurement.","Submitted by Megan O'Donnell (mnodonn2@illinois.edu) on 2012-07-02T21:15:05Z No. of bitstreams: 1 2007_Chitwood_Daniel.pdf: 4511114 bytes, checksum: 1d0afdd96454a05b2f005cfbc09c80ac (MD5)","Made available in DSpace on 2012-07-02T21:15:05Z (GMT). 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