Precise measurement of the weak mixing angle from leptonic polarization asymmetries at the SLD experiment

Abstract

This paper presents measurements of the leptonic asymmetries in Z 0 decays measured with the SLD detector at the SLAC Linear Collider. A data sample of approximately 500,000 Z 0 boson decays has been used. These measurements lead to a precise determination of the effective weak mixing angle sin 2 θ w eff. The combined preliminary result is sin 2 θ w eff = 0.23110 ± 0.00029.