Resumen
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=2.197013(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)×10-5GeV-2 (5 ppm). Additionally, the precision measurement of the positive-muon lifetime is needed to determine the nucleon pseudoscalar coupling gP.
| Idioma original | English |
|---|---|
| Número de artículo | 032001 |
| Publicación | Physical Review Letters |
| Volumen | 99 |
| N.º | 3 |
| DOI | |
| Estado | Published - jul 16 2007 |
ASJC Scopus subject areas
- General Physics and Astronomy
Huella
Profundice en los temas de investigación de 'Improved measurement of the positive-muon lifetime and determination of the fermi constant'. En conjunto forman una huella única.Citar esto
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