| Article | |
| Report number | arXiv:2111.05166 |
| Title | Two-parton scattering in the high-energy limit: climbing two- and three-Reggeon ladders |
| Author(s) | Falcioni, Giulio (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Gardi, Einan (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Maher, Niamh (U. Edinburgh, Higgs Ctr. Theor. Phys.) ; Milloy, Calum (Turin U. ; INFN, Turin) ; Vernazza, Leonardo (Turin U. ; INFN, Turin ; CERN) |
| Publication | 2022-06-20 |
| Imprint | 2021-11-09 |
| Number of pages | 22 |
| Note | 22 pages, 4 figures; Proceedings for the 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology, FSU, Tallahasse, FL, USA, 17-21 May 2021 |
| In: | SciPost Phys. Proc. 7 (2022) 007 |
| In: | 15th International Symposium on Radiative Corrections: Applications of Quantum Field Theory to Phenomenology AND LoopFest XIX: Workshop on Radiative Corrections for the LHC and Future Colliders (Radcor and LoopFest 2021), Tallahassee, FL, United States, 16 - 21 May 2021 |
| DOI | 10.21468/SciPostPhysProc.7.007 |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| Abstract | We review recent progress on the calculation of scattering amplitudes in the high-energy limit. We start by illustrating the shockwave formalism, which allows one to calculate amplitudes as iterated solutions of rapidity evolution equations. We then focus on our recent results regarding $2\to 2$ parton scattering. We present the calculation of the imaginary part of the amplitude, at next-to-leading logarithmic accuracy in the high-energy logarithms, formally to all orders, and in practice to 13 loops. We then discuss the computation of the real part of the amplitude at next-to-next-to-leading logarithmic accuracy and through four loops. Both computations are carried in full colour, and provide new insight into the analytic structure of scattering amplitudes and their infrared singularity structure. |
| Copyright/License | preprint: (License: arXiv nonexclusive-distrib 1.0) publication: © 2022-2024 L. Vernazza et al. (License: CC-BY-4.0) |
Corresponding record in: Inspire
Zapis kreiran 2021-11-10, zadnja izmjena 2023-08-10
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