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 observa bles 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 fermi on masses being neglected) are compared with the latest data of the fo ur LEP detectors, which at the level of one standard deviation coincid e with their Born values. Our global fit gives: m(t) = 161(-16-22)+1516, 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 smal ler 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 alph a(s)BAR, show a weak dependence on m(H) and differ by several predicte d standard deviations from the corresponding Born values. The uncertai nties of the predicted values and their deviations from the correspond ing Born values determine the experimental accuracy required to observ e electroweak radiative corrections.