par Almatraz, H.;Bertrand, Daniel 
;Sacton, Jean ;Vander Velde, Catherine ; [et al.]
Référence Physics letters. Section B, 138, 1-3, page (230-234)
Publication Publié, 1984
;Sacton, Jean ;Vander Velde, Catherine ; [et al.]Référence Physics letters. Section B, 138, 1-3, page (230-234)
Publication Publié, 1984
Article révisé par les pairs
| Résumé : | An exposure of BEBC equipped with the hydrogen-filled TST to the v μ wide band beam at the CERN SPS has been used to study v μ interactions on free protons. About neutral induced interactions have been observed inside the hydrogen and separated into charged current, neutral current and neutral hadron interactions using a multivariate discriminant analysis based on the kinematics of the events. The neutral to charged current cross-section ratio has been determined to be R p v = 0.33 ± 0.04. When combined with the value of R p v previously determined in the same experiment, the result is compatible with the prediction of the standard SU (2) × U (1) model for sin 2θ W = 0.24 -0.08 +0.06 and ρ = 1.07 -0.08 +0.06. Fixing the parameter ρ = 1 yields sin 2θ W = 0.18 ± 0.04. |
