Two--loop heavy Higgs correction to Higgs decay into vector bosons

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/148027The leading $m_H$ radiative correction to the Higgs decay width into a pair of weak vector bosons is calculated at the two--loop level, using the equivalence theorem in Landau gauge. The result indicates the breakdown of perturbation theory if the Higgs boson is heavier than $\sim 930$ GeV, in spite of the smallness of the one--loop radiative correction.to appear in Nucl. Phys. BHigh Energy Physics - PhenomenologyTwo--loop heavy Higgs correction to Higgs decay into vector bosonstext