paper

Higgs Boson Pair Production at Next-to-Next-to-Leading Order in QCD

arXiv:1309.6594 · doi:10.1103/PhysRevLett.111.201801

Abstract

We compute the next-to-next-to-leading order QCD corrections for Standard Model Higgs boson pair production inclusive cross section at hadron colliders within the large top-mass approximation. We provide numerical results for the LHC, finding that the corrections are large, resulting in an increase of with respect to the next-to-leading order result at c.m. energy . We observe a substantial reduction in the scale dependence, with overlap between the current and previous order prediction. All our results are normalized using the full top- and bottom-mass dependence at leading order. We also provide analytical expressions for the K factors as a function of .

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