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University of Illinois - Urbana-Champaign

A measurement of the mean life of the positive muon to a precision of 11 parts per million

Abstract

dc:description

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.

Degree

thesis:*
Name thesis:degree_name
Ph.D.
Level thesis:degree_level
Dissertation
Discipline thesis:degree_discipline
Physics
Year dc:date
2012

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Chitwood, Daniel Brian
Contributors dc:contributor
  • Hertzog, David W.

Subjects

dc:subject × 5

Rights

dc:rights
Statement dc:rights
  • © 2007 Daniel Brian Chitwood
Language dc:language
en

Identifiers

dc:identifier.*
Identifier
5654355
OAI identifier oai:identifier
oai:www.ideals.illinois.edu:2142/32108

Chain of custody

source
Harvested from
University of Illinois - Urbana-Champaign
Base URL
www.ideals.illinois.edu/oai-pmh
Last updated
2026-07-22
Source record
OAI-PMH GetRecord
citation

Chitwood, Daniel Brian. A measurement of the mean life of the positive muon to a precision of 11 parts per million. Dissertation thesis, 2012. http://hdl.handle.net/2142/32108