Feynman-integral techniques for gravitational wave physics

In the first part of my talk, I will introduce the physical setup: the computation of gravitational waveforms emitted in hyperbolic encounters, and the need for representations that are both analytically tractable and suitable for numerical evaluation. These computations can be approached by generalising techniques originally developed in the context of high-precision collider physics, in particular methods for simplifying and evaluating the relevant integrals.
Thus, I will discuss singularity-free Feynman integral bases, designed so that integration-by-parts reductions do not introduce coefficients singular in the dimensional regulator. Such bases can simplify the structure of amplitudes and related observables, and provide useful lessons for the organisation of gravitational waveform computations, as well as for collider observables.