Precision Measurement of sin2 thetaW at a Reactor
J. M. Conrad, J. M. Link, M. H. Shaevitz
Abstract
This paper presents a strategy for measuring sin2 thetaW to ~1% at a reactor-based experiment, using antineutrinos electron elastic scattering. This error is comparable to the NuTeV, SLAC E158, and APV results on sin2 thetaW, but with substantially different contributions to the systematics. An improved method for identifying antineutrino proton events, which serve both as a background and as a normalization sample, is described. The measurement can be performed using the near detector of the presently proposed reactor-based oscillation experiments. We conclude that an absolute error of delta(sin2 thetaW)=0.0019 may be achieved.
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