%0 Journal Article %T Higgs Physics and the Equivalence Theorem %A Kurt Riesselmann %J Physics %D 1995 %I arXiv %X The equivalence theorem is an extremely useful tool to calculate heavy Higgs {\it and} top-quark effects for processes that have center-of-mass-energies (much) larger than the $W$ boson mass. After an explanation of the renormalization procedures involved, the results for one- and two-loop radiative corrections to the fermionic Higgs decay, $H\rightarrow f\bar f$, are given and discussed. Finally, the renormalization scheme dependence is examined, and the reliability of the perturbative series is investigated. %U http://arxiv.org/abs/hep-ph/9504321v1