Abstract
We have performed a high-statistics measurement of Bhabha scattering and of the production of hadrons in electron-positron annihilation at PETRA energies (). Combining the results with measurements of and production enables us to compare our results with electroweak theory. We find . This is in good agreement with the value obtained from neutrino experiments which were carried out in entirely different kinematic regions.
- Received 27 March 1981
DOI:https://doi.org/10.1103/PhysRevLett.46.1663
©1981 American Physical Society