A precise measurement of sin2 θW at low Q2 in Møller scatteringAntonin Vacheret and David Lhuillier
CEA-Saclay, Dapnia/SPhN, 91191 Gif-sur-Yvette, France
(Received 15 December 2004 / Published online 08 February 2005)
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: APV=-128± 14(stat)± 12(syst) × 10-9. From this quantity we extract , consistent with the Standard Model prediction.
PACS: 11.30.Er Charge conjugation, parity, time reversal, and other discrete symmetries - 12.15.Lk Electroweak radiative corrections - 12.15.Mm Neutral currents - 13.66.Lm Processes in other lepton-lepton interactions - 13.88.+e Polarization in interactions and scattering - 14.60.Cd Electrons
The Authors, representing the E-158 Collaboration
© Società Italiana di Fisica, Springer-Verlag 2005