Higher-order QCD and electroweak corrections for t tH production

2025/09/27 by Kidonakis, Nikolaos, Yamanaka, Nodoka
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph)

paper · doi:10.48550/arxiv.2509.23293

Abstract

We calculate higher-order QCD and electroweak (EW) corrections for the associated production of a top-antitop quark pair and a Higgs boson (t tH production). Using soft-gluon resummation in one-particle-inclusive (1PI) kinematics, we present cross sections through approximate N³LO (aN³LO) in QCD and NLO in EW for t tH production at LHC energies. These aN³LO QCD + NLO EW results provide significant enhancements over lower orders and a reduced scale dependence. Based on our results and current experimental data, we derive a constraint on the deviation of the top quark Yukawa coupling from the Standard Model value which is a probe of new physics beyond it. We also calculate top-quark differential distributions in transverse momentum and rapidity.

Citations

• Analytic reconstruction with massive particles: one-loop amplitudes for 0 → qqttH
• State-of-the-art cross sections for ttH: NNLO predictions matched with NNLL resummation and EW corrections
• Resummation for s-channel single-top production
• Precise predictions for t t H production at the LHC: inclusive cross section and differential distributions
• Two-loop QCD amplitudes for ttH production from boosted limit
• Electroweak and QCD corrections to top-pair hadroproduction in association with heavy bosons
• Theory and phenomenology of two-Higgs-doublet models

Related

• Higher-order corrections for t tZ production
• Theoretical predictions for t tW cross sections at approximate N³LO
• Top-quark production cross sections at higher perturbative orders
• Higher-order corrections for t t production at high energies
• NLO QCD + electroweak predictions for off-shell ttH production at the LHC