The epsilon variables for electroweak precision tests: a reappraisal

We update the analysis of the precision electroweak tests in terms of the previously introduced epsilon parameters, by taking into account the new experimental information (i.e. the data presented at the Glasgow Conference) and some recent theoretical progress in the computation of the radiative corrections in the Standard Model. At the same time we further clarify some important points, as, for example, the dependence of the analysis on the input values of αs(mZ) and α(mZ).