Neutral Current Coupling-constants From Neutrino-electron and Antineutrino-electron Scattering

Vilain, P.; Wilquet, G.; Flegel, W.; Grote, H.; Mouthuy, T.; Overas, H.; Panman, J.; Rozanov, A.; Winter, K.; Zacek, G.; Zacek, V.; Beyer, R.; Busser, F. W.; Foos, C.; Gerland, L.; Layda, T.; Niebergall, F.; Radel, G.; Stahelin, P.; Voss, T.; Favart, D.; Gregoire, G.; Knoops, E.; Lemaitre, V.; Gorbunov, P.; Grigoriev, E.; Khovansky, V.; Maslennikov, A.; Lippich, W.; Nathaniel, A.; Staude, A.; Vogt, J.; Caria, M.; Cocco, A. G.; Eckart, B.; Ereditato, A.; Fiorillo, Giuliana; Palladino, Vittorio; Strolin, P.; Capone, A.; Depedis, D.; Dicapua, E.; Dore, U.; Frenkelrambaldi, A.; Loverre, P. F.; Macina, D.; Piredda, G.; Santacesaria, R.

doi:10.1016/0370-2693(92)90291-B

We are reporting on a determination of neutral current coupling constants from a study of differential cross sections of muon(anti)neutrino-electron scattering. The results were obtained with the CHARM-II detector which was exposed to the CERN wide band neutrino beam in the years 1987-1990. A total of about 2100 ve and 2200 veBAR scattering events were observed. From a comparison between the data and predicted event distributions, the effective vector and axial-vector neutral current coupling constants of the electron were determined to be g(V)e = -0.025 +/- 0.019 and g(A)e = -0.503 +/- 0.018.

Neutral Current Coupling-constants From Neutrino-electron and Antineutrino-electron Scattering / P., V., G., W., W., F., H., G., T., M., H., O., J., P., A., R., K., W., G., Z., V., Z., R., B., F. W., B., C., F., L., G., T., L., F., N., G., R., P., S., T., V., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 281:(1992), pp. 159-166. [10.1016/0370-2693(92)90291-B]