On the Precise Determination of the Fermi Coupling Constant from the Muon Lifetime

Preprint

6 April 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9904240

Abstract

The determination of the Fermi coupling constant, G_F, is examined in the light of recently calculated 2-loop QED corrections and planned experiments to measure the muon lifetime to a level below 1ppm. The methods used in the calculation of the QED corrections are described in detail. Sources of the dominant theoretical and experimental uncertainties are identified. Finally the incorporation of G_F into analyses using the full electroweak Standard Model is discussed.

Keywords

FERMI COUPLING CONSTANT
PRECISE DETERMINATION
STANDARD MODEL
UNCERTAINTIES
MUON LIFETIME
G_F

All Related Versions

Version 1, 1999-04-06, ArXiv
Published version: Nuclear Physics B, 564 (3), 343.

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