Measurement of the neutral to charged current cross section ratios in neutrino and antineutrino nucleon interactions and determination of the Weinberg angle

H. Abramowicz*, J. G.H. de Groot, T. Hansl-Kozanecka, J. Knobloch, J. May, E. L. Navarria, P. Palazzi, A. Para, F. Ranjard, J. Rothberg, D. Schlatter, J. Steinberger, H. Taureg, W. von Rüden, H. Wahl, J. Wotschack, J. Duda, F. Eisele, H. P. Klasen, K. KleinknechtH. Lierl, D. Pollmann, B. Pszola, B. Renk, H. J. Willutzki, F. Dydak, T. Flottmann, C. Geweniger, V. Hepp, J. Królikowski, K. Tittel, P. Bloch, B. Bloch-Devaux, C. Guyot, S. Loucatos, J. Maillard, J. P. Merlo, B. Peyaud, J. Rander, A. Savoy-Navarro, R. Turlay, J. T. He, T. Z. Ruan, W. M. Wu

*Corresponding author for this work

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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 find Rv=0.301±0.007 and Rv=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 {Mathematical expression} renormalization scheme at the scale of the W boson mass {Mathematical expression} is obtained, where the error represents the experimental uncertainty. The theoretical uncertainty is estimated to be Δsin2θW=±0.006.

Original languageEnglish
Pages (from-to)51-56
Number of pages6
JournalEuropean Physical Journal C
Volume28
Issue number1
DOIs
StatePublished - Mar 1985
Externally publishedYes

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