par Vilain, Pierre ;Wilquet, Gaston ; [et al.]
Référence Physics letters. Section B, 281, page (159-166)
Publication Publié, 1992
Article révisé par les pairs
Résumé : We are reporting on a determination of neutral current coupling constants from a study of differential cross sections of muon- (anti)neutrino-electron scattering. The results were obtained with the CHARM-II detector which was exposed to the CERN wide band neutrino beam in the years 1987-1990. A total of about 2100 ve and 2200 v̄e scattering events were observed. From a comparison between the data and predicted event distributions, the effective vector and axial-vector neutral current coupling constants of the electron were determined to be gev=-0.025±0.019 and geA=-0.503±0.018. © 1992.