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We perform a detailed study of the various one-loop contributions leading toproduction of the Standard Model Higgs boson in association with a hard jet.This production mode contributes to the current Tevatron exclusion limit of theStandard Model Higgs with 160 GeV < M_H < 170 GeV, and will also be importantfor discovery and interpretation of new scalar bosons at the Large HadronCollider (LHC). We include top- and bottom-quark initiated contributions,maintaining the exact dependence on the quark masses, and also study previouslyneglected W- and Z-boson mediated effects which shift the qg and q\bar{q}production modes. We consider the deviations from commonly used approximationsfor the Higgs boson transverse momentum spectrum caused by the finite top-quarkmass, bottom quark contributions, and electroweak gauge boson terms. All threeeffects act to decrease the Higgs boson transverse momentum distribution forobservable momenta, with shifts reaching -8% at the Tevatron and -30% at theLHC. The shifts have a significant dependence on the Higgs p_T, and areespecially important if large momenta are selected by experimental cuts.

Electroweak and finite quark-mass effects on the Higgs boson transverse momentum distribution