scholarly journals Improved Measurement of the Positive-Muon Lifetime and Determination of the Fermi Constant

2007 ◽  
Vol 99 (3) ◽  
Author(s):  
D. B. Chitwood ◽  
T. I. Banks ◽  
M. J. Barnes ◽  
S. Battu ◽  
R. M. Carey ◽  
...  
Keyword(s):  
Positive Muon ◽  
Muon Lifetime

scholarly journals Mulan: a part-per-million measurement of the muon lifetime and determination of the Fermi constant

2021 ◽  
Author(s):  
Rebecca Carey ◽  
Tim Gorringe ◽  
David Hertzog
Keyword(s):  
Magnetic Field ◽  
Quartz Crystal ◽  
Muon Beam ◽  
Positive Muon ◽  
Muon Capture ◽  
The Standard Model ◽  
Muon Lifetime ◽  
Surface Muon ◽  
Paul Scherrer

The part-per-million measurement of the positive muon lifetime and determination of the Fermi constant by the MuLan experiment at the Paul Scherrer Institute is reviewed. The experiment used an innovative, time-structured, surface muon beam and a near-4\piπ, finely-segmented, plastic scintillator positron detector. Two in-vacuum muon stopping targets were used: a ferromagnetic foil with a large internal magnetic field, and a quartz crystal in a moderate external magnetic field. The experiment acquired a dataset of 1.6 \times 10^{12}1.6×1012 positive muon decays and obtained a muon lifetime \tau_{\mu} = 2\, 196\, 980.3(2.2)τμ=2196980.3(2.2)~ps (1.0~ppm) and Fermi constant G_F = 1.166\, 378\, 7(6) \times 10^{-5}F=1.1663787(6)×10−5 GeV^{-2}−2 (0.5~ppm). The thirty-fold improvement in \tau_{\mu}τμ has proven valuable for precision measurements in nuclear muon capture and the commensurate improvement in G_FF has proven valuable for precision tests of the standard model.

scholarly journals Measurement of the Positive Muon Lifetime and Determination of the Fermi Constant to Part-per-Million Precision

2011 ◽  
Vol 106 (4) ◽  
Author(s):  
D. M. Webber ◽  
V. Tishchenko ◽  
Q. Peng ◽  
S. Battu ◽  
R. M. Carey ◽  
...  
Keyword(s):  
Positive Muon ◽  
Muon Lifetime

scholarly journals Detailed report of the MuLan measurement of the positive muon lifetime and determination of the Fermi constant

2013 ◽  
Vol 87 (5) ◽  
Author(s):  
V. Tishchenko ◽  
S. Battu ◽  
R. M. Carey ◽  
D. B. Chitwood ◽  
J. Crnkovic ◽  
...  
Keyword(s):  
Positive Muon ◽  
Detailed Report ◽  
Muon Lifetime

Precise measurement of the positive muon lifetime at the RIKEN-RAL muon facility

2003 ◽  
Vol 29 (8) ◽  
pp. 2013-2015 ◽  
Author(s):  
D Tomono ◽  
S N Nakamura ◽  
Y Matsuda ◽  
M Iwasaki ◽  
G Mason ◽  
...  
Keyword(s):  
Precise Measurement ◽  
Positive Muon ◽  
Muon Facility ◽  
Muon Lifetime
Sign in / Sign up

Export Citation Format

Share Document