title: Next-to-leading order QCD corrections to pp-->ttbb+X at the LHC.
abstract: We report on the calculation of the full next-to-leading-order QCD corrections to the production of ttbb final states at the LHC, which deliver a serious background contribution to the production of a Higgs boson (decaying into a bb pair) in association with a tt pair. While the corrections significantly reduce the unphysical scale dependence of the leading-order cross section, our results predict an enhancement of the ttbb production cross section by a K factor of about 1.8.
authors: High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
authors: A
authors: A
authors: Bredenstein
authors: A
authors: A
authors: Denner
authors: S
authors: S
authors: Dittmaier
authors: S
authors: S
authors: Pozzorini