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A precise measurement of sin2θW at low Q2 in Møller scattering

  • Antonin Vacheret
  • David Lhuillier
Conference paper

Abstract

The E-158 experiment has performed the first measurement of the parity-violating asymmetry in electron-electron (Møller) scattering using a 50 GeV polarized electron beam and a fixed unpolarized liquid hydrogen target in End Station A at SLAC. Our preliminary results is: A PV = −128±14(stat)± 12(syst) × 10−9. From this quantity we extract \( \sin ^2 \theta _W (Q^2 = 0.026GeV/c^2 )_{\overline {MS} } = 0.2403 \pm 0.0010(stat) \pm 0.0009(syst) \), consistent with the Standard Model prediction.

Keywords

Standard Model Prediction Wire Array Pulse Pair Electroweak Radiative Correction Beam Asymmetry 
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Copyright information

© Springer-Verlag 2005

Authors and Affiliations

  • Antonin Vacheret
    • 1
  • David Lhuillier
    • 1
  1. 1.CEA-Saclay, Dapnia/SPhNGif-sur-YvetteFrance

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