PRODUCTION OF SINGLE W-BOSONS IN E(-) INTERACTIONS AT -THAN-OR-EQUAL-TO-ROOT-S-LESS-THAN-OR-EQUAL-TO-183 GEV AND LIMITS ON ANOMALOUS WW-GAMMA COUPLINGS()E()
M. Acciarri et al., PRODUCTION OF SINGLE W-BOSONS IN E(-) INTERACTIONS AT -THAN-OR-EQUAL-TO-ROOT-S-LESS-THAN-OR-EQUAL-TO-183 GEV AND LIMITS ON ANOMALOUS WW-GAMMA COUPLINGS()E(), Physics letters. Section B, 436(3-4), 1998, pp. 417-427
We report on a study of single W boson production in a data sample col
lected by the L3 detector at centre-of-mass energies from 130 to 183 G
eV. The signal consists of large missing energy final states with a si
ngle energetic lepton or two hadronic jets. The measured cross section
s at five different centre-of-mass energies are consistent with the St
andard Model expectations. The following limits on the anomalous WW ga
mma gauge couplings are derived at 95% CL: - 0.46 < Delta kappa(gamma)
< 0.57 and - 0.86 < lambda(gamma) < 0.75. (C) 1998 Elsevier Science B
.V. All rights reserved.