Two-loop amplitudes for $\mathcal{O}(α_s^2)$ corrections to $Wγγ$ production at the LHC
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916411507474432 |
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| author | Badger, Simon Hartanto, Heribertus Bayu Wu, Zihao Zhang, Yang Zoia, Simone |
| author_facet | Badger, Simon Hartanto, Heribertus Bayu Wu, Zihao Zhang, Yang Zoia, Simone |
| contents | 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 | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_08146 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Two-loop amplitudes for $\mathcal{O}(α_s^2)$ corrections to $Wγγ$ production at the LHC Badger, Simon Hartanto, Heribertus Bayu Wu, Zihao Zhang, Yang Zoia, Simone High Energy Physics - Phenomenology 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. |
| title | Two-loop amplitudes for $\mathcal{O}(α_s^2)$ corrections to $Wγγ$ production at the LHC |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2409.08146 |