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Higgs-boson production in association with bottom quarks is an importantdiscovery channel for supersymmetric Higgs particles at hadron colliders forlarge values of tan(beta). We present the complete O(alpha) electroweak andO(alpha_s) strong corrections to associated bottom-Higgs production through bbfusion in the MSSM and improve this next-to-leading-order prediction by knowntwo-loop contributions to the Higgs self-energies, as provided by the programFeynHiggs. Choosing proper renormalization and input-parameter schemes, thebulk of the corrections (in particular the leading terms for tan(beta)) can beabsorbed into an improved Born approximation. The remaining non-universalcorrections are typically of the order of a few per cent. Numerical results arediscussed for the benchmark scenarios SPS 1b and SPS 4.

MSSM Higgs-boson production in bottom-quark fusion: electroweak radiative corrections