3 papers
hep-th2026
Classical Spin Transitions and Absorptive Scattering
Juan Pablo Gatica, Callum R. T. Jones
We describe an on-shell, amplitudes-based approach to incorporating radiation absorption effects in the post-Minkowskian scattering of generic, compact, spinning bodies. Classical…
hep-th2024
One-Loop Observables to Higher Order in Spin
Juan Pablo Gatica
We study observables in the scattering of classical, spinning objects using the KMOC formalism. In particular, we derive formulas to higher order in spin and one loop $\mathcal{O}(…
hep-th2023
The Eikonal Phase and Spinning Observables
Juan Pablo Gatica
We set up the Kosower, Maybee, O'Connell formalism for generic spin following a previous field theory construction and use it to extract a next-to-leading order eikonal formula for…