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  • Alwall, Johan, et al. (author)
  • Strange quark asymmetry in the nucleon and the NuTeV anomaly
  • 2004
  • In: Physical Review D. - 0556-2821. ; 70, s. 111505(R)-
  • Journal article (peer-reviewed)abstract
    • The NuTeV anomaly of a nonuniversal value of the fundamental parameter sin2thetaW in the electroweak theory has been interpreted as an indication for new physics beyond the standard model. However, the observed quantity depends on a possible asymmetry in the momentum distributions of strange quarks and antiquarks in the nucleon. This asymmetry occurs naturally in a phenomenologically successful physical model for such parton distributions, which reduces the NuTeV result to only about 2 standard deviations from the standard model.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Alwall, Johan (1)
Ingelman, Gunnar (1)
University
Uppsala University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2004 (1)

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