Theory Seminar

# From Scattering Amplitudes to Classical Observables

## by Prof. David Kosower

Wednesday, 29 May 2019 from to (Europe/Berlin)
at MPI Meeting rooms ( 313 )
 Description 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.