Publication: Two-loop QCD corrections for three-photon production at hadron colliders
Two-loop QCD corrections for three-photon production at hadron colliders
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Abreu, S., De Laurentis, G., Ita, H., Klinkert, M., Page, B., & Sotnikov, V. (2023). Two-loop QCD corrections for three-photon production at hadron colliders. SciPost Physics, 15(4), 157. https://doi.org/10.21468/scipostphys.15.4.157
Abstract
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Abstract
We complete the computation of the two-loop helicity amplitudes for the production of three photons at hadron colliders, including all contributions beyond the leading-color approximation. We reconstruct the analytic form of the amplitudes from numerical finite-field samples obtained with the numerical unitarity method. This method requires as input surface terms for all relevant five-point non-planar integral topologies, which we obtain by solving the associated syzygy problem in embedding space. The numerical samples are used to con
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- Abreu, Samuel
- De Laurentis, Giuseppe
- Ita, Harald
- Klinkert, Maximillian
- Page, Ben
- Sotnikov, Vasily
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Abreu, S., De Laurentis, G., Ita, H., Klinkert, M., Page, B., & Sotnikov, V. (2023). Two-loop QCD corrections for three-photon production at hadron colliders. SciPost Physics, 15(4), 157. https://doi.org/10.21468/scipostphys.15.4.157
