HET Journal club: Andrew McLeod

Speaker: Andrew McLeod

Title: Understanding the All-Order Infrared Structure of Gauge Theory

Abstract: Bootstrap techniques---wherein one imposes known constraints on an ansatz in the hope of uniquely determining the answer---have proven to be an increasingly powerful method for computing amplitudes in recent years. While the most significant progress in this direction has been made in planar maximally supersymmetric Yang-Mills theory, these techniques can be naturally extended to quantities of direct relevance to collider predictions, such as those associated with the resummation of large logarithms. In this talk, I will show how the infrared structure of gauge theory can be determined up to an overall numerical factor through three loops, using only information about its analytic properties and its behavior in special kinematic limits. I will also comment on ongoing work to extend this computation to four loops.