Precise determination of electroweak parameters in neutrino-nucleon scattering.
نویسندگان
چکیده
The NuTeV Collaboration has extracted the electroweak parameter sin(2)theta(W) from the measurement of the ratios of neutral current to charged current nu and (-)nu cross sections. Our value, sin(2)theta((on-shell))(W) = 0.2277 +/- 0.0013(stat) +/- 0.0009(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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عنوان ژورنال:
- Physical review letters
دوره 88 9 شماره
صفحات -
تاریخ انتشار 2002