On the Precise Determination of the Fermi Coupling Constant from the Muon Lifetime
High Energy Physics - Phenomenology
2009-10-31 v1
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
Cite
@article{arxiv.hep-ph/9904240,
title = {On the Precise Determination of the Fermi Coupling Constant from the Muon Lifetime},
author = {Timo van Ritbergen and Robin G. Stuart},
journal= {arXiv preprint arXiv:hep-ph/9904240},
year = {2009}
}
Comments
48 pages LaTeX. 11 figures. Uses amsmath.sty, axodraw.sty, cite.sty