Abstract
The cross section ratios of neutral and charged current interactions induced by neutrinos and antineutrinos in iron have been measured in the 200 GeV narrow-band beam at the CERN SPS. We findR v =0.301±0.007 andR v =0.363±0.015 for a hadron energy cut of 10 GeV. The results are in agreement with the standard model of electroweak interactions. In the\(\overline {MS} \) renormalization scheme at the scale of theW boson mass\(\sin ^2 \hat \theta _W \left( {m_W } \right) = 0.226 \pm 0.012\) is obtained, where the error represents the experimental uncertainty. The theoretical uncertainty is estimated to beΔsin2 θ W =±0.006.
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Supported by the Bundesministerium für Forschung und Technologie, Bonn, FRG
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Abramowicz, H., de Groot, J.G.H., Hansl-Kozanecka, T. et al. Measurement of the neutral to charged current cross section ratios in neutrino and antineutrino nucleon interactions and determination of the Weinberg angle. Z. Phys. C - Particles and Fields 28, 51–56 (1985). https://doi.org/10.1007/BF01550248
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DOI: https://doi.org/10.1007/BF01550248