DECAY WIDTH MODELING OF HIGGS BOSON WITHIN THDM MODEL

As part of the search for new physics beyond Standard Model, we chose determination Higgs boson decay width as one least experimentally determined values. The widths into four fermions lightest and heaviest CP-even bosons THDM model were calculated, taking account QCD electroweak corrections in NLO approximation. To achieve this goal, program Monte Carlo Prophecy 4f with special scenarios parameters, 7B1 5B1 used. It was found that heavier boson, H differs from H$_{SM}$ by 1227.93 times changes to a negative value when deviating standard scenarios. Scale factors k$^2_{Z}$ k$^2_{W}$ showed predominance associated Z production cross section over W section.