Speaker
Description
In this talk, we address the significance of studying hyperbolic orbits in gravitational physics by comparing different methods of calculating scattering observables. We begin by detailing a numerical calculation method for the scalar self-force correction to the scattering angle and juxtapose these results with analytical expressions derived from scattering-amplitude methods, up to fourth post-Minkowskian order. We then provide an overview of the current state of modelling scattering orbits within Numerical Relativity. Specifically, we compare preliminary results of unequal mass hyperbolic binary black hole encounters obtained through Numerical Relativity simulations with predictions from post-Minkowskian and Effective One Body methods. Our findings shed light on the strengths and limitations of each method and pave the way for further advancements in understanding hyperbolic encounters in gravitational systems.
