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Interpretations of the NuTeV $\sin^2 θ_W$

Sacha Davidson
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Abstract

We summarize theoretical explanations of the three $σ$ discrepancy between $\sin^2 θ_W$ measured by NuTeV and predicted by the Standard Model global fit. Possible new physics explanations ({\it e.g.} an unmized $Z'$) are not compelling. The discrepancy would be reduced by a positive momentum asymmetry $s^-$ in the strange sea; present experimental estimates of $s^-$ are unreliable or incomplete. Upgrading the NuTeV analysis to NLO would alleviate concerns that the discrepancy is a QCD effect.

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Sacha Davidson. 2002-11-03. Interpretations of the NuTeV $\sin^2 θ_W$. https://doi.org/10.1088/0954-3899%2F29%2F8%2F390

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