Theoretical predictions for $t{\bar t}W$ cross sections at approximate N$^3$LO
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910498927149056 |
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| author | Kidonakis, Nikolaos Foster, Chris |
| author_facet | Kidonakis, Nikolaos Foster, Chris |
| contents | We present theoretical calculations of higher-order QCD and electroweak corrections for the associated production of a top-antitop quark pair and a $W$ boson ($t{\bar t}W$ production) at LHC energies. We show predictions for cross sections at approximate N$^3$LO (aN$^3$LO) which include second-order and third-order soft-gluon corrections added to the exact NLO QCD+electroweak result. We compare our results to recent measurements from the LHC, and we find that our predictions provide improved agreement with the data. We also calculate the top-quark transverse momentum and rapidity distributions in $t{\bar t}W$ production. We find significant enhancements from the higher-order corrections to the total and differential cross sections for this process. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_15773 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Theoretical predictions for $t{\bar t}W$ cross sections at approximate N$^3$LO Kidonakis, Nikolaos Foster, Chris High Energy Physics - Phenomenology We present theoretical calculations of higher-order QCD and electroweak corrections for the associated production of a top-antitop quark pair and a $W$ boson ($t{\bar t}W$ production) at LHC energies. We show predictions for cross sections at approximate N$^3$LO (aN$^3$LO) which include second-order and third-order soft-gluon corrections added to the exact NLO QCD+electroweak result. We compare our results to recent measurements from the LHC, and we find that our predictions provide improved agreement with the data. We also calculate the top-quark transverse momentum and rapidity distributions in $t{\bar t}W$ production. We find significant enhancements from the higher-order corrections to the total and differential cross sections for this process. |
| title | Theoretical predictions for $t{\bar t}W$ cross sections at approximate N$^3$LO |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.15773 |