Multi-Regge Limit of the Two-Loop Five-Point Amplitudes in $\mathcal{N} = 4$ Super Yang-Mills and $\mathcal{N} = 8$ Supergravity

Understand

In previous work, the two-loop five-point amplitudes in $\mathcal{N}=4$ super Yang-Mills theory and $\mathcal{N}=8$ supergravity were computed at symbol level.

• In this paper, we compute the full functional form.
• The amplitudes are assembled and simplified using the analytic expressions of the two-loop pentagon integrals in the physical scattering region.
• We provide the explicit functional expressions, and a numerical reference point in the scattering region.