Electroweak Precision Measurements with Leptons
James E. Brau
Abstract
The precision measurements of lepton electroweak parameters at SLD and LEP are reviewed and discussed. The updated SLD weak mixing angle measurement from ALR and the lepton left-right forward-backward asymmetries is 2θWeff = 0.23099 0.00026, and the combined SLD/LEP lepton-based value is 0.23119 0.00020. This value differs by over 3σ from the comparable quark-based value.
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