Two-loop amplitudes for $$ \mathcal{O}\left({\alpha}_s^2\right) $$ corrections to Wγγ production at the LHC
A bstract 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 N eat IBP package, allowing for an efficient computation of the rational coefficients of the scattering amplitudes over finite fields.
Authors
- Yang Zhang (ORCID: https://orcid.org/0000-0001-9151-8486)
- Zihao Wu (ORCID: https://orcid.org/0000-0003-3561-5403)
- Simon Badger (ORCID: https://orcid.org/0000-0002-8089-9209)
- Heribertus Bayu Hartanto (ORCID: https://orcid.org/0000-0002-6474-7029)
- Simone Zoia (ORCID: https://orcid.org/0000-0003-1159-728X)
Institutions
- Pohang University of Science and Technology (KR)
- University of Science and Technology of China (CN)
- Asia Pacific Center for Theoretical Physics (KR)
- Istituto Nazionale di Fisica Nucleare, Sezione di Torino (IT)
- Peng Huanwu Center for Fundamental Theory (CN)
- European Organization for Nuclear Research (CH)
- University College of Applied Science (PS)
Publication Details
- Journal
- Journal of High Energy Physics
- Published
- 2024-12-30
- DOI
- https://doi.org/10.1007/jhep12(2024)221
- Citations
- 15
- Primary Topic
- Particle physics theoretical and experimental studies
- Type
- article
- Field-Weighted Citation Impact
- 9.89
Funders
- National Science Foundation
- European Commission
- National Natural Science Foundation of China
- HORIZON EUROPE Framework Programme