Ancillary files for "Lepton-pair scattering with an off-shell and an on-shell photon at two loops in massless QED"

These ancillary files include:

• the analytic expressions of the two-loop amplitudes for the process \(0\to \ell\bar\ell\gamma\gamma^*\),
• a Mathematica reference implementation for their numerical evaluation,
• the pure master integral bases used for the computation,
• the maps from master integrals to a special function basis and its expression in terms of MPLs.

See the enclosed README files for details.