Analytic two-loop amplitudes for q q ¯ → γγ $$ q\overline{q}\to \gamma \gamma $$ and gg → γγ mediated by a heavy-quark loop

Abstract We address the analytic computation of the two-loop scattering amplitudes for the production of two photons in parton-parton scattering, mediated by loops of heavy quarks. Due to the presence of integrals of elliptic type, both partonic channels have been previously computed using semi-nume...

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Bibliographic Details
Main Authors: Matteo Becchetti, Federico Coro, Christoph Nega, Lorenzo Tancredi, Fabian J. Wagner
Format: Article
Language:English
Published: SpringerOpen 2025-06-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP06(2025)033
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