Scattering Amplitudes in Quantum Field Theory

This course bridges the gap between introductory quantum field theory (QFT) courses and state-of-the-art research in scattering amplitudes. We will cover the path from basic definitions of QFT to amplitudes relevant for processes in the Standard Model of particle physics. We begin with a concise yet self-contained introduction into QFT, including perturbative quantum gravity. We then present modern methods for calculating scattering amplitudes, focusing on tree-level amplitudes, loop-level integrands and loop integration techniques. These methods help reveal intriguing relations between gauge and gravity amplitudes, and are of increasing importance for obtaining high-precision predictions for collider experiments, such as those at CERN's Large Hadron Collider, as well as for foundational mathematical physics studies in QFT, including recent applications to gravitational wave physics.

The key to register in the Moodle course is the last name of the physicist who invented a diagrammatic representation of perturbation theory.