Two-Loop O ( α s G F m 2 t ) Correction to the H → bb̄ Decay Rate

We present the two-loop O(αsGF mt ) correction to the bb̄ decay rate of the Standard-Model Higgs boson, assuming that the t quark is much heavier than the Higgs boson. Apart from the universal correction connected with the renormalizations of the wave function and the vacuum expectation value of the Higgs field, this involves vertex corrections specific to… CONTINUE READING