Revisiting the flavor changing neutral current Higgs decays H → qiqj in the Standard Model

An exact calculation of the Higgs boson decays H -> q(i)q(j) mediated by flavor-changing neutral currents is presented in the context of the Standard Model. Using up-to-date experimental data, branching ratios of the order of 10(-7), 10(-8), 10(-8), and 10(-15) are found for the (b) over bars + (s) over barb, (b) over bard + (d) over barb, (s) over bard + (d) over bars, and (c) over baru + (u) over barc decay modes, respectively.