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Abstract
Abstract.
The CCFR collaboration reports a precise measurement of electroweak parameters derived from the ratio of neutral-current to charged-current cross-sections in neutrino-nucleon scattering at the Fermilab Tevatron. We determine for GeV, GeV. This is equivalent to GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional contact interactions at 95% confidence at a mass scale of 1-8 TeV, depending on the form of the contact interaction.
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1 Fermi National Accelerator Laboratory, Batavia, IL 60510, USA , US





