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

• Published in: Physics letters. B 1995-02, Vol.345 (1), p.115-118
• Main Authors: Vilain, P., Wilquet, G., Beyer, R., Flegel, W., Mouthuy, T., Øverås, H., Panman, J., Winter, K., Zacek, G., Zacek, V., Büsser, F.W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Rädel, G., Stähelin, P., Voss, T., Favart, D., Grégoire, Gh, Knoops, E., Lemaître, V., Gorbunov, P., Grigoriev, E., Khovansky, V., Maslennikov, A., Rozanov, A., Lippich, W., Nathaniel, A., Staude, A., Vogt, J., Cocco, A.G., Ereditato, A., Fiorillo, G., Marchetti-Stasi, F., Palladino, V., Strolin, P., Capone, A., De Pedis, D., Dore, U., Frenkel-Rambaldi, A., Loverre, P.F., Macina, D., Piredda, G., Santacesaria, R., Di Capua, E., Ricciardi, S., Saitta, B., Akkus, B., Arik, E., Serin-Zeyrek, M., Sever, R., Tolun, P., Hiller, K., Nahnhauer, R., Roloff, H.E.
• Format: Article
• Language: English
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(94)01678-6

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 < 3 · 10 −9 μ B confirms limits obtained at much lower energies. The limit on the anomalous charge radius of the muon neutrino |〈 r 2〉 anom| < 6.0 · 10 −33 cm 2 im earlier results by nearly a factor three.