Reassessment of the NuTeV determination of the Weinberg angle

Abstract

In light of the recent discovery of the importance of the isovector EMC effect for the interpretation of the NuTeV determination of sin^2 theta_W, it seems timely to reassess the central value and the errors on this fundamental Standard Model parameter derived from the NuTeV data. We also include earlier work on charge symmetry violation and the recent limits on a possible asymmetry between s and \bar{s} quarks. With these corrections we find a revised NuTeV result of sin^2 theta_W = 0.2232 \pm 0.0013(stat) \pm 0.0024(syst), which is in excellent agreement with the running of sin^2 theta_W predicted by the Standard Model.

4 pages, one figure

References in corpus (5)

• Parton distributions for the LHC
• Precision determination of electroweak parameters and the strange content of the proton from neutrino deep-inelastic scattering
• Isovector EMC effect explains the NuTeV anomaly
• Charge Symmetry at the Partonic Level
• Measurement of the forward-backward charge asymmetry and extraction of sin^2Theta^{eff}_W in ppbar -> Z/γ^{*}+X -> e+e+X events produced at \sqrt{s}=1.96 TeV

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