State-of-the-art cross sections for $t\bar{t}H$: NNLO+NNLL+EW predictions
Anna Kulesza
TL;DR
This paper provides the most precise theoretical predictions for the cross section of Higgs production with top quarks at the LHC, combining advanced QCD and electroweak calculations.
Contribution
It introduces a comprehensive calculation that combines NNLO QCD, NNLL resummation, and NLO electroweak corrections for $t\bar{t}H$ production.
Findings
Enhanced precision in cross section predictions.
Agreement between different resummation frameworks.
Foundation for future experimental analyses.
Abstract
The most precise theoretical predictions for the total cross section for the associated production of a Higgs boson with a top-antitop quark pair at the LHC, first presented in \cite{Balsach:2025tth}, are reported. The calculation combines NNLO QCD corrections that include an approximation of the two-loop virtual contribution, with soft-gluon resummation at NNLL accuracy in two independent frameworks (SCET and direct QCD), and complete NLO electroweak corrections.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · Computational Physics and Python Applications · Quantum Chromodynamics and Particle Interactions