Higher-order QCD and electroweak corrections for $t{\bar t}H$ production
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866912839676985344 |
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| author | Kidonakis, Nikolaos Yamanaka, Nodoka |
| author_facet | Kidonakis, Nikolaos Yamanaka, Nodoka |
| contents | We calculate higher-order soft-gluon corrections for the associated production of a top-antitop quark pair and a Higgs boson ($t{\bar t}H$ production) using resummation in one-particle-inclusive (1PI) kinematics. By adding these corrections to NLO QCD and NLO electroweak (EW) results, we present cross sections through approximate N$^3$LO (aN$^3$LO) in QCD and NLO in EW for $t{\bar t}H$ production at LHC energies. These aN$^3$LO 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_23293 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Higher-order QCD and electroweak corrections for $t{\bar t}H$ production Kidonakis, Nikolaos Yamanaka, Nodoka High Energy Physics - Phenomenology We calculate higher-order soft-gluon corrections for the associated production of a top-antitop quark pair and a Higgs boson ($t{\bar t}H$ production) using resummation in one-particle-inclusive (1PI) kinematics. By adding these corrections to NLO QCD and NLO electroweak (EW) results, we present cross sections through approximate N$^3$LO (aN$^3$LO) in QCD and NLO in EW for $t{\bar t}H$ production at LHC energies. These aN$^3$LO 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. |
| title | Higher-order QCD and electroweak corrections for $t{\bar t}H$ production |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2509.23293 |