Snowmass TF04 Report: Scattering Amplitudes and their Applications

Abstract

The field of scattering amplitudes plays a central role in elementary-particle physics. This includes various problems of broader interest for collider physics, gravitational physics, and fundamental principles underlying quantum field theory. We describe various applications and theoretical advances pointing towards novel descriptions of quantum field theories. Comments on future prospects are included.Comment: 18 pages, 4 figure