Abstract
We report on a measurement of in collisions at at the Fermilab Tevatron. The measurement is based on an integrated luminosity (lum) of of data collected with the D0 detector during 1994–1995. We find that . Lepton universality predicts that the ratio of the tau and electron electroweak charged current couplings to the boson, , be unity. We find , in agreement with lepton universality.
- Received 28 December 1999
DOI:https://doi.org/10.1103/PhysRevLett.84.5710
©2000 American Physical Society