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Standard Model Explanations for the NuTeV Electroweak Measurements

R. H. Bernstein

hep-exarXiv:hep-ex/0210061

Abstract

The NuTeV Collaboration has measured the electroweak parameters sin2 thetaW and rho in neutrino-nucleon deep-inelastic scattering using a sign-selected beam. The nearly pure neutrino or antineutrino beams that result provide many of the cancellations of systematics associated with the Paschos-Wolfenstein relation. The extracted result for sin2 thetaW(on-shell) is three standard deviations from prediction. We discuss Standard Model explanations for the puzzle.

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