We report final results on electroweak parameters from muon-neutrino electron scattering observed in the CHARM II detector from 1987 till 1991. In total 2677+/-82 and 2752+/-88 neutrino-electron scattering events have been detected in the ν and ν-beam, respectively. From the ration of differential cross sections we obtain for the electroweak mixing angle sin2 Θ = 0.2324+/-0.0083. From the absolute neutrino-electron scattering event rate we determined the effective vector and axial-vector neutral current coupling constants to be gVve = -0.035+/-0.017 and gAve = -0.503+/-0.017.

PRECISION MEASUREMENT OF ELECTROWEAK PARAMETERS FROM THE SCATTERING OF MUON-NEUTRINOS ON ELECTRONS / Vilain, P., Wilquet, G., Beyer, R., Flegel, W., Grote, H., Mouthuy, T., Øveras, H., Panman, J., Rozanov, A., Winter, K., Zacek, G., Zacek, V., Büsser, F.W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Rädel, G., Stähelin, P., Voss, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - B335:(1994), pp. 246-252. [10.1016/0370-2693(94)91421-4]

PRECISION MEASUREMENT OF ELECTROWEAK PARAMETERS FROM THE SCATTERING OF MUON-NEUTRINOS ON ELECTRONS

CAPONE, Antonio;DORE, Ubaldo;LOVERRE, Pier Ferruccio;
1994

Abstract

We report final results on electroweak parameters from muon-neutrino electron scattering observed in the CHARM II detector from 1987 till 1991. In total 2677+/-82 and 2752+/-88 neutrino-electron scattering events have been detected in the ν and ν-beam, respectively. From the ration of differential cross sections we obtain for the electroweak mixing angle sin2 Θ = 0.2324+/-0.0083. From the absolute neutrino-electron scattering event rate we determined the effective vector and axial-vector neutral current coupling constants to be gVve = -0.035+/-0.017 and gAve = -0.503+/-0.017.
1994
01 Pubblicazione su rivista::01a Articolo in rivista
PRECISION MEASUREMENT OF ELECTROWEAK PARAMETERS FROM THE SCATTERING OF MUON-NEUTRINOS ON ELECTRONS / Vilain, P., Wilquet, G., Beyer, R., Flegel, W., Grote, H., Mouthuy, T., Øveras, H., Panman, J., Rozanov, A., Winter, K., Zacek, G., Zacek, V., Büsser, F.W., Foos, C., Gerland, L., Layda, T., Niebergall, F., Rädel, G., Stähelin, P., Voss, T., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - B335:(1994), pp. 246-252. [10.1016/0370-2693(94)91421-4]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/247020
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