7 research outputs found

    First QCD results from SLD

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    QCD studies of hadronic decays of Z0 bosons by SLD

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    Measurements of spin sensitive quantities in hadronic decays of Z0 bosons produced in e+ e- annihilations

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    First results from SLD with polarized electron beam at SLC

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    First measurement of the left-right cross-section asymmetry in Z boson production at E(cm) = 91.5-GeV

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    First measurement of the left-right asymmetry in Z boson production

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    We present the first measurement of the left-right cross-section asymmetry (A(LR)) in Z-boson production observed at the SLAC Linear Collider. In 1992 the SLD detector recorded 10 224 Z events produced by the collision of longitudinally polarized electrons with an unpolarized positron beam at a center-of-mass energy of 91.55 GeV. The average electron beam polarization during the run was (22.4 +/- 0.6)%. We measure A(LR) to be 0.100 +/- 0.044 (stat.) +/- 0.004 (syst.), which determines the effective weak mixing angle to be sin2 theta(W)eff = 0.2378 +/- 0.0056 (stat.) +/- 0.0005 (syst.)
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