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 -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 scatering of muon-neutrinos on electron

E. Di Capua;S. Ricciardi;
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 -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
Vilain, P.; Wilquet, G.; Beyer, R.; Flegel, W.; Grote, H.; Mouthuy, T.; Panman, H. Overas J.; Rozanov, A.; Winter, K.; Zacek, G.; Zacek, V.; Busser, F. W.; Foos, C; Gerland, L.; Layda, T.; Niebergall, F.; Radel, G.; Stahelin, P.; Voss, T.; Favart, D.; Grégoire, G.; Knoops, E.; Lemaitre, V.; Gorbunov, P.; Grigoriev, E.; Khovansky, V.; Maslennikov, A.; Lippich, W.; Nathaniel, A.; Staude, A.; Vogt, J.; Cocco, A. G.; Ereditato, A.; Fiorillo, G.; Marchetti-Stasi, E; Palladino, V.; Strolin, P.; Capone, A.; De Pedis, D.; Dore, U.; Frenkel-Rambaldi, A.; Loverre, P. E.; 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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/461103
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