Contributions of below--threshold decays to $\mathcal{M}\mathcal{S}\mathcal{S}\mathcal{M}$ Higgs branching ratios

We calculate all the experimentally relevant branching ratios of the Higgs bosons of the Minimal Supersymmetric Standard Model, paying particular attention to the contributions from below–threshold decays. We show that in some cases these can significantly change the pattern of branching ratios calculated without taking off–shell effects into account