Higgs-boson production in association with a single bottom quark

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-pT bottom quark via g→bhb allows for the suppression of backgrounds. Previous studies have instead used gg,qq̄→bb̄h as the production mechanism, which is valid only if both b quarks are at high pT. We calculate g→bhb at next-to-leading order in QCD, and find that it is an order of magnitude larger than gg,qq̄→bb̄h 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.