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arxiv: hep-ex/0301029 · v1 · submitted 2003-01-16 · ✦ hep-ex

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The SLAC Polarized Electron Source and Beam for E-158

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classification ✦ hep-ex
keywords e-158beamelectronpolarizedslacasymmetryfirstscattering
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SLAC E-158 is making the first measurement of parity violation in Moller scattering. E-158 measures the right-left cross-section asymmetry, A_LR, in the scattering of a 45-GeV polarized electron beam off unpolarized electrons in a liquid hydrogen target. E-158 plans to measure the expected Standard Model asymmetry of ~10^-7 to an accuracy of better than 10^-8. This paper discusses the performance of the SLAC polarized electron source and beam during E-158's first physics run in April/May 2002.

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