Two-loop amplitudes for ttH production: the quark-initiated Nf-part

Abstract

We present numerical results for the two-loop virtual amplitude entering the NNLO corrections to Higgs boson production in association with a top quark pair at the LHC, focusing, as a proof of concept of our method, on the part of the quark-initiated channel containing loops of massless or massive quarks. Results for the UV renormalised and IR subtracted two-loop amplitude for each colour structure are given at selected phase-space points and visualised in terms of surfaces as a function of two-dimensional slices of the full phase space.

Correction of LO event distribution in Fig.2

References in corpus (18)

• LHAPDF6: parton density access in the LHC precision era
• GoSam-2.0: a tool for automated one-loop calculations within the Standard Model and beyond
• Higgs boson production in association with top quarks in the POWHEG BOX
• Scattering amplitudes over finite fields and multivariate functional reconstruction
• Sector Decomposition
• QCD NLO and EW NLO corrections to $t\bar{t}H$ production with top quark decays at hadron collider
• Scalar and pseudoscalar Higgs production in association with a top-antitop pair
• Weak corrections to Higgs hadroproduction in association with a top-quark pair
• Two-Loop Fermionic Corrections to Heavy-Quark Pair Production: the Quark-Antiquark Channel
• Transverse-momentum resummation for heavy-quark hadroproduction
• Two-Loop Planar Corrections to Heavy-Quark Pair Production in the Quark-Antiquark Channel
• Associated production of a top quark pair with a heavy electroweak gauge boson at NLO+NNLL accuracy
• Higgs boson production in association with a top-antitop quark pair in next-to-next-to leading order QCD
• Higgs production in association with off-shell top-antitop pairs at NLO EW and QCD at the LHC
• NNLL resummation for the associated production of a top pair and a Higgs boson at the LHC
• Numerical Scattering Amplitudes with pySecDec
• The ice cone family and iterated integrals for Calabi-Yau varieties
• Resummation of soft and Coulomb corrections for $t\bar{t}h$ production at the LHC

Cited by in corpus (6)

• FeynCalc 10: Do multiloop integrals dream of computer codes?
• Les Houches 2023 -- Physics at TeV Colliders: Report on the Standard Model Precision Wishlist
• State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections
• $\text{history}$: A tool for fully-differential cross sections at next-to-next-to-leading order
• Pseudoscalar Higgs boson decay to three parton amplitudes at NNLO to higher orders in the dimensional regulator
• One-loop amplitudes for $t\bar{t}j$ and $t\bar{t}\gamma$ productions at the LHC through $\mathcal{O}({\epsilon }^2)$