  Higgs bosons from an extended Higgs sector, such as a two-Higgs-doublet
model, can have greatly enhanced coupling to the bottom quark. Producing such a
Higgs boson in association with a single high-p_T bottom quark via g b -> h b
allows for the suppression of backgrounds. Previous studies have instead used g
g,qbar q -> bbar b h as the production mechanism, which is valid only if both b
quarks are at high p_T. We calculate g b -> h b at next-to-leading order in
QCD, and find that it is an order of magnitude larger than g g,qbar q -> bbar b
h at the Fermilab Tevatron and the CERN Large Hadron Collider. This production
mechanism improves the prospects for the discovery of a Higgs boson with
enhanced coupling to the b quark.
