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

Authors
VILAIN P WILQUET G BEYER R FLEGEL W GROTE H MOUTHUY T OVERAS H PANMAN J ROZANOV A WINTER K ZACEK G 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 B ARIK E SERINZEYREK M SEVER R TOLUN P HILLER K NAHNHAUER R ROLOFF HE
Citation
P. Vilain et al., PRECISION-MEASUREMENT OF ELECTROWEAK PARAMETERS FROM THE SCATTERING OF MUON-NEUTRINOS ON ELECTRONS, Physics letters. Section B, 335(2), 1994, pp. 246-252
Citations number
22
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
335
Issue
2
Year of publication
1994
Pages
246 - 252
Database
ISI
SICI code
0370-2693(1994)335:2<246:POEPFT>2.0.ZU;2-5
Abstract
We report final results on electroweak parameters from muon-neutrino e lectron scattering observed in the CHARM II detector from 1987 till 19 91. 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 electrowea k mixing angle sin2 THETA(nue) = 0.2324 +/- 0.0083. From the absolute neutrino-electron scattering event rate we determined the effective ve ctor and axial-vector neutral current coupling constants to be g(v)nue = -0.035 +/-0.017 and g(A)nue = -0.503 +/- 0.017.