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oai:www.ideals.illinois.edu:2142/17005 2023-07-10 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

Fermi constant MuLan collaboration A part-per-million measurement of the positive muon lifetime and a determination of the Fermi constant Hertzog, David W. Nathan, Alan M. Hertzog, David W. El-Khadra, Aida X. Kwiat, Paul G. Webber, David M. 2010-08-31T20:03:56Z 2010-08-31T20:03:56Z 2012-09-07T16:43:35Z 2010-08 2010-08-31T20:03:56Z 2010-08 The mean life of the positive muon has been measured to part-per-million precision using a time-structured beam, a ferromagnetic target, and a fast, multi-segmented and symmetric scintillator detection array. The result, based on data acquired in 2006, is $\tau_{\mu^+} = \unit[2196980.1 \pm 2.6 \pm 1.9]{ps},$ where the first uncertainty is statistical and the second is systematic. When combined with the measurement based on our 2007 dataset, the average is $\tau_{\mu^+}^{\rm avg} = \unit[2196980.3 \pm 2.8]{ps}$ and the derived value for the Fermi constant is $G_F = \unit[1.1663818 (8) \times 10^{-5}]{GeV^{-2}}$. This thesis describes the motivation for the measurement, the experimental technique, the data analysis, and the systematic uncertainties for the 2006 dataset. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2010-05-24T18:11:18Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Webber_David.tar.bz2: 21664369 bytes, checksum: d32fe04b99bc2350042b0bbe22f82724 (MD5) Webber_David.pdf: 8994271 bytes, checksum: 2a89e1baa2ac74045f6d4e1dce6e435e (MD5) Made available in DSpace on 2010-08-31T20:03:56Z (GMT). No. of bitstreams: 3 Webber_David.tar.bz2: 21664369 bytes, checksum: d32fe04b99bc2350042b0bbe22f82724 (MD5) Webber_David.pdf: 8994271 bytes, checksum: 2a89e1baa2ac74045f6d4e1dce6e435e (MD5) license.txt: 4061 bytes, checksum: 425dbb9962a4502e6e4fc973f4aece0f (MD5) Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by William Ingram (wingram2@illinois.edu) on 2010-08-31T20:04:54Z Item is restricted until 2012-08-31T20:04:44Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2012-09-07T16:43:35Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Physics (ID: 445) No. of bitstreams: 4 Webber_David.tar.bz2: 21664369 bytes, checksum: d32fe04b99bc2350042b0bbe22f82724 (MD5) Webber_David.pdf: 8994271 bytes, checksum: 2a89e1baa2ac74045f6d4e1dce6e435e (MD5) license.txt: 4061 bytes, checksum: 425dbb9962a4502e6e4fc973f4aece0f (MD5) Webber_David.pdf.txt: 224896 bytes, checksum: 7c363feb21b1f3479a8deb09ea1cd74f (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2012-09-07T16:43:35Z http://hdl.handle.net/2142/17005 en Copyright 2010 David M. Webber positive muon muon lifetime precision measurement 0240 Physics 1244 Physics University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Physics -UIUC 10KS0240PHD