Observation of charge asymmetry in hadron jets frome+eannihilation at√s =29GeV

Abstract
A charge asymmetry has been observed in final-state jets from e+ e annihilation into hadrons at √s =29 GeV. The measured asymmetry is consistent with the prediction of electroweak theory. The product of axial-vector weak coupling constants, averaged over all quark flavors, is determined to be 〈gAe gAq〉=-0.34±0.06±0.05.