Published May 22, 2008 | Version v1
Journal article Metadata-only

Measurement of the Fermi constant by FAST

Creators

  • 1. CERN, Geneva (Switzerland)
  • 2. CIEMAT, Madrid (Spain)
  • 3. Universite de Geneve, Geneva (Switzerland)
  • 4. Paul Scherrer Institute, Villigen (Switzerland)

Description

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 τμ=2.197083(32)(15)μs, where the first error is statistical and the second is systematic. The muon lifetime determines the Fermi constant, GF=1.166352(9)x10-5GeV-2 (8 ppm)

Availability note (English)

Available from http://dx.doi.org/10.1016/j.physletb.2008.04.006

Additional details

Identifiers

DOI
10.1016/j.physletb.2008.04.006;
arXiv
arXiv:0707.3904v2;
PII
S0370-2693(08)00419-X;

Publishing Information

Journal Title
Physics Letters. Section B
Journal Volume
663
Journal Issue
3
Journal Page Range
p. 172-180
ISSN
0370-2693
CODEN
PYLBAJ

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40046856
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
ACCURACY; ERRORS; FERMI INTERACTIONS; LIFETIME; MUONS PLUS
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BASIC INTERACTIONS; ELEMENTARY PARTICLES; FERMIONS; INTERACTIONS; LEPTONS; MATTER; MUONS; WEAK INTERACTIONS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.