Abstract
Theoretical calculations for the W-pair production process at LEP2 in terms of Monte Carlo event generators RacoonWW and KorlaW&YFSWW3 are reviewed. The discussion concentrates on precision predictions for the main LEP2 WW observables. The theoretical precision of the above programs is estimated to be ∼ 0.5% for the total WW cross section σ ww , ∼ 5 MeV for the W-boson mass M W , and ∼ 0.005 for the triple-gauge-boson coupling τ = τ γ = τ Z ; which is sufficient for the final LEP2 data analyses.
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