Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering
Physical Review Letters2002Vol. 88(9)
Citations Over TimeTop 1% of 2002 papers
G. P. Zeller, K. S. McFarland, T. Adams, T. Alexander, S. Avvakumov, L. de Barbaro, P. de Barbaro, Robert Bernstein, A. Bodek, T. Bolton, J. Brau, D. Buchholz, H. Budd, L. Bugel, J. M. Conrad, R. B. Drucker, B. T. Fleming, R. Frey, J. A. Formaggio, J. Goldman, M. Goncharov, Deborah 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. S. Yu, E. D. Zimmerman
Abstract
The NuTeV Collaboration has extracted the electroweak parameter ${sin}^{2}{\ensuremath{\theta}}_{W}$ from the measurement of the ratios of neutral current to charged current $\ensuremath{\nu}$ and $\overline{\ensuremath{\nu}}$ cross sections. Our value, ${sin}^{2}{\ensuremath{\theta}}_{W}^{(\mathrm{on}\ensuremath{-}\mathrm{shell})}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0.2277\ifmmode\pm\else\textpm\fi{}0.0013(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}0.0009(\mathrm{syst})$, is 3 standard deviations above the standard model prediction. We also present a model independent analysis of the same data in terms of neutral-current quark couplings.
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