Abstract
In the decoupling limit of a non-minimal Higgs sector, the lightest CP-even Higgs boson ( h) is indistinguishable from the Standard Model (SM) Higgs boson. In the two-Higgs-doublet sector of the MSSM, the approach to the decoupling limit (for m A ⪢ m z ) persists, even in the presence of potentially large (tan β-enhanced) radiative corrections to the hb b coupling. Radiative corrections can also generate an accidental cancellation between tree-level and one-loop terms, resulting in a SM-like Higgs boson for moderate m A outside the decoupling regime.
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