A Measurement of the tau lifetime
Collaboration
17 pages
Published in:
- Phys.Lett.B 302 (1993) 356-368
Report number:
- CERN-PPE-93-12
Experiments:
View in:
Citations per year
Abstract: (Elsevier)
The tau lepton lifetime is measured using four different methods with the DELPHI detector. Three measurements using one prong decays are combined, accounting for correlations, resulting in τ τ =298 ±7 (stat.)±4 (syst.) fs while the decay length distribution of three prong decays gives π π =298±13 (stat)±(syst.) fs. The combined result is τ τ =298±7 fs. The ratio of the Fermi coupling constant from tau decay relative to that from muon decay is found to be 0.985±0.013, compatible with lepton universality.- electron positron: colliding beams
- colliding beams: electron positron
- electron positron: annihilation
- annihilation: electron positron
- Z0: electroproduction
- electroproduction: Z0
- tau: pair production
- pair production: tau
- tau: lifetime
- tau: decay modes
References(13)
Figures(0)