A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering

NuTeV Collaboration: G.P. Zeller , K.S. McFarland , T. Adams , A. Alton , S. Avvakumov , L. deBarbaro , P. deBarbaro , R.H. Bernstein

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A. Bodek T. Bolton J. Brau D. Buchholz H. Budd L. Bugel J. Conrad R.B. Drucker B.T. Fleming R. Frey J.A. Formaggio J. Goldman M. Goncharov D.A. Harris R.A. Johnson J.H. Kim S. Koutsoliotas M.J. Lamm W. Marsh D. Mason J. McDonald C. McNulty D. Naples P. Nienaber A. Romosan W.K. Sakumoto H. Schellman M.H. Shaevitz P. Spentzouris E.G. Stern N. Suwonjandee M. Tzanov M. Vakili A. Vaitaitis U.K. Yang J. Yu E.D. Zimmerman

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classification ✦ hep-ex

keywords currentmodelstandardthetaaboveanalysisanti-neutrinocharged

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The NuTeV collaboration has extracted sin^2theta_W from the ratios of neutral current to charged current neutrino and anti-neutrino cross-sections. Our value, sin^2theta_W(on-shell)=0.2277+/-0.0013(stat)+/-0.0009(syst), is three standard deviations above the standard model prediction. We also present a model independent analysis of the same data.

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A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering

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