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.; OVERAS, H; Panman, J.; ROZANOV, A; WINTER, K; Zacek, V.; ZACEK, V; BUSSER, FW; 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; COCCO, AG; EREDITATO, A; FIORILLO, G; MARCHETTISTASI, F; PALLADINO, V; STROLIN, P; CAPONE, A; DEPEDIS, D; DORE, U; FRENKELRAMBALDI, A; LOVERRE, PF; MACINA, D; PIREDDA, G; SANTACESARIA, R; DICAPUA, E; RICCIARDI, S; SAITTA, B; AKKUS, Baki; ARIK, E; SERINZEYREK, M; SEVER, R; TOLUN, P; HILLER, K; NAHNHAUER, R; ROLOFF, HE

doi:10.1016/0370-2693(94)91421-4

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

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Vilain P., Wilquet G., Beyer R., Flegel W., Grote H., Mouthuy T., ...More

PHYSICS LETTERS B, vol.335, no.2, pp.246-252, 1994 (SCI-Expanded)

Publication Type: Article / Article
Volume: 335 Issue: 2
Publication Date: 1994
Doi Number: 10.1016/0370-2693(94)91421-4
Journal Name: PHYSICS LETTERS B
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.246-252
Istanbul University Affiliated: Yes

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 nu and nuBAR-beam, respectively. From the ratio of differential cross sections we obtain for the electroweak mixing angle sin2 THETA(nue) = 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 g(v)nue = -0.035 +/-0.017 and g(A)nue = -0.503 +/- 0.017.