Precise measurement of the Fermi-coupling constant precise measurement of μ+ lifetime

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The Fermi coupling constant (GF) is one of the most basic parameters of the Standard Model and its accuracy is limited by the uncertainty of the μ+ lifetime. However, its accuracy has not been improved in more than a decade. Recently, its importance was recognized again and an experiment with a new experimental technique started at the RIKEN-RAL Muon Facility and similar experiments are proposed at PSI. A possibility to improve the experiment with a future muon source is discussed.

Original languageEnglish
Pages (from-to)429-433
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number3
Publication statusPublished - 2001 Oct 21

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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