THE VALUES OF M(T) AND (ALPHA)OVER-BAR-S DERIVED FROM THE NONOBSERVATION OF ELECTROWEAK RADIATIVE-CORRECTIONS AT LEP - GLOBAL FIT

A set of equations representing the W/Z mass ratio and various observables of Z decays in terms of alphaBAR = alpha(m(Z)), G(mu), m(Z), m(t), m(H), alpha(s)BAR = alpha(s)(m(Z)), m(b) and m(tau) (all other fermion masses being neglected) are compared with the latest data of the four LEP detectors, which at the level of one standard deviation coincide with their Born values. Our global fit gives: m(t) = 161(-16-22)+15+16, alpha(s)BAR = 0.119 +/- 0.006 +/- 0.002, where the central values correspond to m(H) = 300 GeV, the first errors are statistical and the second ones represent shifts of the central values corresponding to m(H) = 1000 GeV(+) and 60 GeV(-). The predicted mass of the top is smaller than in the recent fits by 4 GeV. The predicted values of m(W)/m(Z) and the LEP observables, based on the fitted values of m(t) and alpha(s)BAR, show a weak dependence on m(H) and differ by several predicted standard deviations from the corresponding Born values. The uncertainties of the predicted values and their deviations from the corresponding Born values determine the experimental accuracy required to observe electroweak radiative corrections.