Journal article
Measurement of the tau branching fractions into leptons
Abstract
Using data collected with the L3 detector near the Z resonance, corresponding to an integrated luminosity of 150 pb−1, the branching fractions of the tau lepton into electron and muon are measured to be B(τ→eν̄eντ)=(17.806±0.104(stat.)±0.076(syst.))%, B(τ→μν̄μντ)=(17.342±0.110(stat.)±0.067(syst.))%. From these results the ratio of the charged current coupling constants of the muon and the electron is determined to be gμ/ge=1.0007±0.0051. …
Authors
Collaboration L; Acciarri M; Achard P; Adriani O; Aguilar-Benitez M; Alcaraz J; Alemanni G; Allaby J; Aloisio A; Alviggi MG
Journal
Physics Letters B, Vol. 507, No. 1-4, pp. 47–60
Publisher
Elsevier
Publication Date
5 2001
DOI
10.1016/s0370-2693(01)00294-5
ISSN
0370-2693