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The European Physical Journal C
ISSN: 1434-6044 (printed version)
ISSN: 1434-6052 (electronic version)
Abstract Volume 1 Issue 3/4 (1998) pp 509-513
experimental physics:
A precision measurement of electroweak parameters in neutrino-nucleon scattering
CCFR/NuTeV Collaboration
, K.S. McFarland et al. (3)
(3) Fermi National Accelerator Laboratory, Batavia, IL 60510, USA
Received: 5 August 1997
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 $\sin^2\theta_W^{\rm \scriptstyle (on-shell)}=0.2236\pm0.0028{\rm\textstyle (expt.)}\pm0.0030{\rm\textstyle (model)}$ for $M_{\rm \scriptstyle top}=175$ GeV, $M_{\rm \scriptstyle Higgs}=150$ GeV. This is equivalent to $M_W=80.35\pm0.21$ GeV. The good agreement of this measurement with Standard Model expectations implies the exclusion of additional $\nu\nu qq$ 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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Online publication: February 5, 1998
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