Next-to-leading order QCD corrections to pp-->ttbb+X at the LHC.
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.
Bredenstein
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High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan.
Denner
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Dittmaier
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Pozzorini
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