Study of the W+W-gamma Process and Limits on Anomalous Quartic Gauge Boson Couplings at LEP
arXiv:hep-ex/0111029 · doi:10.1016/S0370-2693(02)01167-X
Abstract
The process e+e- -> W+ W- gamma is studied using the data collected by the L3 detector at LEP. New results, corresponding to an integrated luminosity of 427.4 pb-1 at centre-of-mass energies from 192 GeV to 207 GeV, are presented. The W+W- gamma cross sections are measured to be in agreement with Standard Model expectations. No hints of anomalous quartic gauge boson couplings are observed. Limits at 95% confidence level are derived using also the process e+e- --> nu nubar gamma gamma.