Measurement of the Fermi Constant by FAST
High Energy Physics - Experiment
2019-08-13 v2
Abstract
An initial measurement of the lifetime of the positive muon to a precision of 16 parts per million (ppm) has been performed with the FAST detector at the Paul Scherrer Institute. The result is tau_mu = 2.197083 (32) (15) microsec, where the first error is statistical and the second is systematic. The muon lifetime determines the Fermi constant, G_F = 1.166353 (9) x 10^-5 GeV^-2 (8 ppm).
Cite
@article{arxiv.0707.3904,
title = {Measurement of the Fermi Constant by FAST},
author = {A. Barczyk and J. Kirkby and L. Malgeri and J. Berdugo and J. Casaus and C. Mana and J. Marin and G. Martinez and E. Sanchez and C. Willmott and C. Casella and M. Pohl and K. Deiters and P. Dick and C. Petitjean},
journal= {arXiv preprint arXiv:0707.3904},
year = {2019}
}
Comments
15 pages, 6 figures