Triple gauge boson couplings axe measured from W-pair events recorded by the OPAL detector at LEP at centre-of-mass energies of 183 - 209 GeV with a total integrated luminosity of 680 pb-1. Only CP-conserving couplings are considered and SU(2)×U(1) relations are used, resulting in four independent couplings, κγ, g1z, λγ and g5z. Determining each coupling in a separate fit, assuming the other couplings to take their Standard Model values, we obtain κγ,=0.88-0.08 +0.09, g1z=0.987-0.033 +0.034, A7=-0.060lg:g|J and g5z=-0.04 -0.12+0.13, where the errors include both statistical and systematic uncertainties. Fits are also performed allowing some of the couplings to vary simultaneously. All results are consistent with the Standard Model predictions.
All Science Journal Classification (ASJC) codes
- Engineering (miscellaneous)
- Physics and Astronomy (miscellaneous)