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State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections
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We present new, state-of-the-art predictions for the associated production of the SM Higgs boson with top quarks, computed in accordance with the recommendations of the LHC Higgs Working Group. The NNLO QCD predictions, derived through suitable approximations of the two-loop virtual contribution, are supplemented with soft-gluon resummation up to NNLL accuracy. Two distinct resummation frameworks are employed - one based on direct QCD and the other on soft-collinear effective theory - and their features are compared in detail. These results are further combined with the complete-NLO corrections, yielding the most precise SM predictions for this process to date. The relevant sources of theoretical uncertainties are thoroughly estimated and discussed.
Forward citations
Cited by 3 Pith papers
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Two-loop Feynman integrals for leading colour $t\bar{t}W$ production at hadron colliders
A complete set of two-loop master integrals for leading-colour ttW production is reduced to differential equations that are at most quadratic in the dimensional regulator and evaluated numerically in the physical region.
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Next-to-next-to-leading order event generation for $t\bar{t}H$ production with approximate two-loop amplitude
First NNLO+PS (MiNNLOPS) generator for ttH production, combining soft-Higgs and high-energy approximate two-loop amplitudes pointwise, with one-loop-level validation.
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Analytic reconstruction with massive particles: one-loop amplitudes for $0 \to \bar{q}qt\bar{t}H$
First analytic reconstruction of the one-loop amplitude for 0 to anti-q, q, top, anti-top, Higgs using massive spinor-helicity, with expressions about twice as fast as the automatic code OpenLoops.
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