English

Top-quark production cross sections at higher perturbative orders

High Energy Physics - Phenomenology 2025-11-17 v1

Abstract

I present calculations of higher-order corrections to top-quark production via three different processes: the production of a top-antitop pair and a ZZ boson; single-top quark production in the ss-channel; and top-antitop production with a Higgs boson. It is shown that the contributions from soft-gluon corrections are numerically dominant and large in all these processes. I present approximate NNLO (aNNLO) and approximate N3^3LO (aN3^3LO) cross sections that include soft-gluon corrections added to the exact NLO QCD results. Electroweak corrections through NLO are also included for ttˉZt{\bar t}Z and ttˉHt{\bar t}H production. The theoretical predictions are compared to LHC measurements of total cross sections for these processes.

Keywords

Cite

@article{arxiv.2511.10856,
  title  = {Top-quark production cross sections at higher perturbative orders},
  author = {Nikolaos Kidonakis},
  journal= {arXiv preprint arXiv:2511.10856},
  year   = {2025}
}

Comments

7 pages, 2 figures; presented at the ICNFP 2025 conference, 17-31 July 2025, Kolymbari, Crete, Greece

R2 v1 2026-07-01T07:36:45.156Z