Experimental study of neutral-current and charged-current neutrino cross sections |
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| Authors: | M. Jonker J. Panman F. Udo J.V. Allaby U. Amaldi G. Barbiellini A. Baroncelli V. Blobel G. Cocconi W. Flegel W. Kozanecki K.H. Mess M. Metcalf J. Meyer R.S. Orr F. Schneider V. Valente A.M. Wetherell C. Santoni |
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| Affiliation: | NIKHEF, Amsterdam, The Netherlands;CERN, Geneva, Switzerland |
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| Abstract: | ![]()
Samples of 9200 muon-neutrino and 3800 muon-antineutrino interactions on nuclei were obtained with the fine-grain calorimeter of the CHARM Collaboration at the CERN 200 GeV narrow-band neutrino beam. The interactions were classified as either neutral-current or charged-current processes on an event-by-event basis. Neutral-current and charged-current cross sections in neutrino and antineutrino interactions are presented. From these results we deduce a statistically significant contribution of right-handed coupling to the neutral hadronic current, and a value of the electroweak mixing angle corresponding to sin2θ = 0.220 ± 0.014. |
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