Top-quark production cross sections at higher perturbative orders
Fuente:
arXiv
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866912707599400960 |
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| author | Kidonakis, Nikolaos |
| author_facet | Kidonakis, Nikolaos |
| contents | I present calculations of higher-order corrections to top-quark production via three different processes: the production of a top-antitop pair and a $Z$ boson; single-top quark production in the $s$-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 N$^3$LO (aN$^3$LO) cross sections that include soft-gluon corrections added to the exact NLO QCD results. Electroweak corrections through NLO are also included for $t{\bar t}Z$ and $t{\bar t}H$ production. The theoretical predictions are compared to LHC measurements of total cross sections for these processes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_10856 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Top-quark production cross sections at higher perturbative orders Kidonakis, Nikolaos High Energy Physics - Phenomenology I present calculations of higher-order corrections to top-quark production via three different processes: the production of a top-antitop pair and a $Z$ boson; single-top quark production in the $s$-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 N$^3$LO (aN$^3$LO) cross sections that include soft-gluon corrections added to the exact NLO QCD results. Electroweak corrections through NLO are also included for $t{\bar t}Z$ and $t{\bar t}H$ production. The theoretical predictions are compared to LHC measurements of total cross sections for these processes. |
| title | Top-quark production cross sections at higher perturbative orders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2511.10856 |