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Strong dynamics behind the formation of the $125$ GeV Higgs boson

We consider the scenario, in which the new strong dynamics is responsible for the formation of the $125$ GeV Higgs boson. The Higgs boson appears as composed of all known quarks and leptons of the Standard Model. The description of the mentioned strong dynamics is given using the $ζ$ - regularization. It allows to construct the effective theory without ultraviolet divergences, in which the $1/N_c$ expansion works naturally. It is shown, that in the leading order of the $1/N_c$ expansion the mass of the composite $h$ - boson is given by $M_h = m_t/\sqrt{2} \approx 125$ GeV, where $m_t$ is the top - quark mass.