Tests of flavor universality for neutrino-Z couplings in future neutrino   experiments
  We investigate the physics potential of NuSOnG experiment to probe new physics contributions to Z-neutrino-neutrino couplings in muon-neutrino electron elastic and neutral-current deep-inelastic scattering processes. We employ an effective Lagrangian approach and do not a priori assume universality of the coupling of neutrinos to Z. We obtain 95% C.L. limits on possible universality violating couplings. 
A.B. Balantekin, I. Sahin, and B. Sahin