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. 2009 Jul 3;103(1):012002.
doi: 10.1103/PhysRevLett.103.012002. Epub 2009 Jul 1.

Next-to-leading order QCD corrections to pp-->ttbb+X at the LHC

A Bredenstein  1 , A Denner, S Dittmaier, S Pozzorini
Affiliations

Next-to-leading order QCD corrections to pp-->ttbb+X at the LHC

A Bredenstein et al. Phys Rev Lett. .

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.

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