Experimental study of electromagnetic properties of the muon-neutrino in neutrino - electron scattering

Abstract We report new bounds on electromagnetic properties of the muon neutrino obtained from a study of neutrino-electron scattering. The results are based on the analysis of differential cross section data collected with the CHARM II detector. The 90% C.L. limit on the magnetic moment of the muon-neutrino μ ν μ −9 μ B confirms limits obtained at much lower energies. The limit on the anomalous charge radius of the muon neutrino |〈 r 2 〉 anom | −33 cm 2 im earlier results by nearly a factor three.