The Effects of the Massless O(alpha_s^2), O(αα_s), O(α^2) QCD and QED Corrections and of the Massive Contributions to Gamma(H^0\rightarrow b\overline{b})

A. L. Kataev, V. T. Kim

We consider in detail various theoretical uncertainties of the perturbative predictions for the decay width of $H^0\to b\overline{b}$ process in the region $50\ GeV< M_H\le…