Abstract
A method is presented for probing the effects of the tri-boson gauge coupling in order to test the standard model and to discover new physics. For vector-boson pair-production in electron-positron annihilation, appropriate helicity amplitudes are defined which confine the contributions of the t-channel fermion-exchange process (with known couplings) to a limited set with simple behaviour. The remaining amplitudes depend entirely on the s-channel vector-boson-exchange process with the associated tri-boson coupling. Angular correlation coefficients and asymmetry parameters in this helicity basis are more directly linked to the tri-boson couplings than in the conventional formalism.
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