Speaker
Lionel Mason
Description
Cachazo, He and Yuan have produced remarkable formulae that express tree-level scattering amplitudes as
sums over certain solutions to the scattering equations defined on the Riemann sphere. The lecture will explain how
these formulae arise from a holomorphic string theory in ambitwistor space and will go on to explain some further
developments such as soft limits and/or loop amplitudes.
