Analytical amplitudes from numerical solutions of the scattering equations

Understand

The CHY formalism for massless scattering provides a cohesive framework for the computation of scattering amplitudes in a variety of theories.

• It is especially compelling because it elucidates existing relations among theories which are seemingly unrelated in a standard Lagrangian formulation.
• However, it entails operations that are highly non-trivial to perform analytically, most notably solving the scattering equations.
• We present a new Python package ( https://github.com/GDeLaurentis/seampy ) to solve the scattering equations and to compute scattering amplitudes.