Neutral Current Coupling-constants From Neutrino-electron Scattering
- B. AKKUS
- E. ARIK
- R. BEYER
- F. W. BUSSER
- A. CAPONE
- M. CARIA
- A. G. COCCO
- D. DEPEDIS
- E. DICAPUA
- U. DORE
- B. ECKART
- A. EREDITATO
- D. FAVART
- W. FLEGEL
- C. FOOS
- A. FRENKELRAMBALDI
- L. GERLAND
- P. GORBUNOV
- G. GREGOIRE
- E. GRIGORIEV
- H. GROTE
- K. HILLER
- V. KHOVANSKY
- E. KNOOPS
- T. LAYDA
- V. LEMAITRE
- W. LIPPICH
- P. F. LOVERRE
- D. MACINA
- A. MASLENNIKOV
- T. MOUTHUY
- R. NAHNHAUER
- A. NATHANIEL
- F. NIEBERGALL
- H. OVERAS
- J. PANMAN
- G. PIREDDA
- G. RADEL
- S. RICCIARDI
- H. E. ROLOFF
- A. ROZANOV
- B. SAITTA
- R. SANTACESARIA
- M. SERINZEYREK
- R. SEVER
- P. STAHELIN
- A. STAUDE
- P. STROLIN
- P. TOLUN
- P. VILAIN
- J. VOGT
- T. VOSS
- G. WILQUET
- K. WINTER
- G. ZACEK
- V. ZACEK
- FIORILLO, GIULIANA
- PALLADINO, VITTORIO
DOIAbstract
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 to 1991. A total of about 3000 nue and 3000 nueBAR scattering events were observed. We present a preliminary value of sin2 theta(W) determined with the ratio of neutrino and antineutrino electron scattering cross-sections, based on the full data sample, and we give a determination of the effective vector and axial-vector neutral current coupling constants and the first measurement of the shape of the y-distributions based on 80% of the total statistics
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