From Scattering Amplitudes to Classical Observables

by Prof. David Kosower

Wednesday 29 May 2019, 14:15 → 15:15 Europe/Berlin

313 (MPI Meeting rooms)

I present a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. I will discuss the ingredients needed for obtaining the classical result, and show how to set up the calculation to derive the result efficiently. The formalism is not specific to a given theory, and is ultimately destined to be used for general relativity. In this talk, I will show two examples from spinless scattering in electrodynamics: the momentum transfer to next-to-leading order, and the momentum radiated to leading order.