Associated Higgs production with bottom quarks at hadron colliders

Higgs-boson production in association with bottom quarks, p p ¯ / p p → b b ¯ H + X , is an important discovery channel for supersymmetric Higgs particles at the Tevatron and the LHC. We present higher-order QCD predictions for inclusive cross sections and for the production of a Higgs boson in association with high- p T bottom quarks. We compare calculations performed in a four-flavour scheme based on the parton processes gg , q q ¯ → b b ¯ H with five-flavour scheme calculations based on bottom-quark scattering.