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| Auteurs principaux: | , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2411.00055 |
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| _version_ | 1866916464290693120 |
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| author | Ablat, Alim Dulat, Sayipjamal Guzzi, Marco Hou, Tie-Jiun Kidonakis, Nikolaos Sitiwaldi, Ibrahim Tonero, Alberto Xie, Keping Yuan, C. -P. |
| author_facet | Ablat, Alim Dulat, Sayipjamal Guzzi, Marco Hou, Tie-Jiun Kidonakis, Nikolaos Sitiwaldi, Ibrahim Tonero, Alberto Xie, Keping Yuan, C. -P. |
| contents | We discuss the impact of eligible top-quark pair production differential cross-section measurements at the LHC with a collision energy of 13 TeV on the parton distribution functions (PDFs) of the proton as well as the impact of approximate next-to-next-to-next-to-leading order (aN$^3$LO) QCD corrections combined with next-to-leading order (NLO) electroweak (EW) corrections on $t\bar t$ observables. We illustrate the effects on the gluon PDF at large $x$ from an optimal baseline selection of data in NNLO global fits, and show comparisons between the theory prediction for $t\bar t$ total and differential cross sections at aN$^3$LO QCD combined with NLO EW and recent measurements from the ATLAS and CMS collaborations at the LHC. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_00055 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Progress in top-quark pair production cross section calculations and impact on parton distribution functions of the proton Ablat, Alim Dulat, Sayipjamal Guzzi, Marco Hou, Tie-Jiun Kidonakis, Nikolaos Sitiwaldi, Ibrahim Tonero, Alberto Xie, Keping Yuan, C. -P. High Energy Physics - Phenomenology We discuss the impact of eligible top-quark pair production differential cross-section measurements at the LHC with a collision energy of 13 TeV on the parton distribution functions (PDFs) of the proton as well as the impact of approximate next-to-next-to-next-to-leading order (aN$^3$LO) QCD corrections combined with next-to-leading order (NLO) electroweak (EW) corrections on $t\bar t$ observables. We illustrate the effects on the gluon PDF at large $x$ from an optimal baseline selection of data in NNLO global fits, and show comparisons between the theory prediction for $t\bar t$ total and differential cross sections at aN$^3$LO QCD combined with NLO EW and recent measurements from the ATLAS and CMS collaborations at the LHC. |
| title | Progress in top-quark pair production cross section calculations and impact on parton distribution functions of the proton |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2411.00055 |