Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC
Abstract We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Hadron Collider. We derived compact analytic expressions for the two-loop amplitudes in the leading colour limit,...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP12(2024)221 |
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| _version_ | 1841545059939385344 |
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| author | Simon Badger Heribertus Bayu Hartanto Zihao Wu Yang Zhang Simone Zoia |
| author_facet | Simon Badger Heribertus Bayu Hartanto Zihao Wu Yang Zhang Simone Zoia |
| author_sort | Simon Badger |
| collection | DOAJ |
| description | Abstract We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Hadron Collider. We derived compact analytic expressions for the two-loop amplitudes in the leading colour limit, and provide numerical results for the subleading colour contributions. We employ a compact system of integration-by-part identities provided by the NeatIBP package, allowing for an efficient computation of the rational coefficients of the scattering amplitudes over finite fields. |
| format | Article |
| id | doaj-art-7d67b8f1ba8b49998c62999b8b6d1e69 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-7d67b8f1ba8b49998c62999b8b6d1e692025-01-12T12:05:45ZengSpringerOpenJournal of High Energy Physics1029-84792024-12-0120241214210.1007/JHEP12(2024)221Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHCSimon Badger0Heribertus Bayu Hartanto1Zihao Wu2Yang Zhang3Simone Zoia4Dipartimento di Fisica and Arnold-Regge Center, Università di Torino, and INFN, Sezione di TorinoAsia Pacific Center for Theoretical PhysicsSchool of Fundamental Physics and Mathematical Sciences, Hangzhou Institute for Advanced Study, UCASInterdisciplinary Center for Theoretical Study, University of Science and Technology of ChinaCERN, Theoretical Physics DepartmentAbstract We present the two-loop helicity amplitudes contributing to the next-to-next-to-leading order QCD predictions for W-boson production in association with two photons at the Large Hadron Collider. We derived compact analytic expressions for the two-loop amplitudes in the leading colour limit, and provide numerical results for the subleading colour contributions. We employ a compact system of integration-by-part identities provided by the NeatIBP package, allowing for an efficient computation of the rational coefficients of the scattering amplitudes over finite fields.https://doi.org/10.1007/JHEP12(2024)221Electroweak Precision PhysicsHigher-Order Perturbative CalculationsScattering Amplitudes |
| spellingShingle | Simon Badger Heribertus Bayu Hartanto Zihao Wu Yang Zhang Simone Zoia Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC Journal of High Energy Physics Electroweak Precision Physics Higher-Order Perturbative Calculations Scattering Amplitudes |
| title | Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC |
| title_full | Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC |
| title_fullStr | Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC |
| title_full_unstemmed | Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC |
| title_short | Two-loop amplitudes for O α s 2 $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC |
| title_sort | two loop amplitudes for o α s 2 mathcal o left alpha s 2 right corrections to wγγ production at the lhc |
| topic | Electroweak Precision Physics Higher-Order Perturbative Calculations Scattering Amplitudes |
| url | https://doi.org/10.1007/JHEP12(2024)221 |
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