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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, 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

hep-exarXiv:hep-ex/0110059

Abstract

The NuTeV collaboration has extracted sin2thetaW from the ratios of neutral current to charged current neutrino and anti-neutrino cross-sections. Our value, sin2thetaW(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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