Abstract
The results of a complete one-loop calculation for the fennionic decay width γ(h 0, H 0, A 0 → ƒ ƒ of the neutral MSSM Higgs bosons are presented and the dominant light Higgs decay channel h 0 → b b is discussed in detail. The enhancement of γ(h 0 → b b) compared to the standard Higgs decay is shown for pseudoscalar masses M A ⩽ 300 GeV, where the one-loop contributions in the MSSM and SM are different. Simpler approximation formulae for the Higgs decays are given and their quality is discussed by introducing an effective neutral scalar mixing angle sin 2 α eff. Finally, the Higgs branching ratios in bb̄, cc̄, τ + τ − are calculated.
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