paper

Improved Measurement of the Muon Lifetime and Determination of the Fermi Constant

arXiv:1108.4033

Abstract

The MuLan collaboration has measured the lifetime of the positve muon to a precision of 1.0 parts per million. The Fermi constant is determined to a precision of 0.6 parts per million.

arXiv commentProceedings of CKM2010, the 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 2010