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hep-ex2010★ 123 cited
Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant to Part-per-Million Precision
D. M. Webber, V. Tishchenko, Q. ~Peng +30
We report a measurement of the positive muon lifetime to a precision of 1.0 parts per million (ppm); it is the most precise particle lifetime ever measured. The experiment used a t…
hep-ex2010
Toward a sub-ppm measurement of the Fermi constant
David M. Webber
The Fermi constant, G_F, describes the strength of the weak force and is determined most precisely from the mean life of the positive muon, tau_mu. Advances in theory have reduced…