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.