ON THE ELECTROWEAK ONE-LOOP CORRECTIONS

One-loop electroweak corrections are rederived and analysed in a simple and straightforward way by using a set of natural and convenient parameters. As examples we consider the ratio of masses of the W and Z bosons, m(W)/m(Z), and the axial and vector couplings of leptonic Z decays, g(A) and g(V). In the framework of the minimal standard model, each of these quantities is presented as an explicit function of the masses of the top quark, m(t), and Higgs boson, m(H), and of the phenomenological parameter theta, which is expressed in terms of the three quantities: m(Z), alpha(m(Z)) and G(mu), which are known at present with much higher accuracy than other electroweak observables.